A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the rpm-4.16.1.3-26.el9 build changelog.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-573 advisory.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2024:0647 advisory.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:0647 advisory.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-0647 advisory.

    - Import additional patches to fix regressions with CVE-2021-35937,       CVE-2021-35938 and CVE-2021-35939 patchset [Orabug: 36256318]
    - Backport file handling code from rpm-4.19 to fix CVE-2021-35937,       CVE-2021-35938 and CVE-2021-35939

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2024:0647 advisory.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0647 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0582 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:0463 advisory.

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2024-0463 advisory.

    - TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)
    - races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0424 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0463 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0435 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2024:0453 advisory.

    The RPM Package Manager (RPM) is a command-line driven package management system capable of installing,     uninstalling, verifying, querying, and updating software packages.

    Security Fix(es):

    * rpm: TOCTOU race in checks for unsafe symlinks (CVE-2021-35937)

    * rpm: races with chown/chmod/capabilities calls during installation (CVE-2021-35938)

    * rpm: checks for unsafe symlinks are not performed for intermediary directories (CVE-2021-35939)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the rpm packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the rpm packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 0c52abde-717b-11ed-98ca-40b034429ecf advisory.

  - There is a flaw in RPM's signature functionality. OpenPGP subkeys are associated with a primary key via a     binding signature. RPM does not check the binding signature of subkeys prior to importing them. If an     attacker is able to add or socially engineer another party to add a malicious subkey to a legitimate     public key, RPM could wrongly trust a malicious signature. The greatest impact of this flaw is to data     integrity. To exploit this flaw, an attacker must either compromise an RPM repository or convince an     administrator to install an untrusted RPM or public key. It is strongly recommended to only use RPMs and     public keys from trusted sources. (CVE-2021-3521)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote host is affected by the vulnerability described in GLSA-202210-22 (RPM: Multiple Vulnerabilities)

  - There is a flaw in RPM's signature functionality. OpenPGP subkeys are associated with a primary key via a     binding signature. RPM does not check the binding signature of subkeys prior to importing them. If an     attacker is able to add or socially engineer another party to add a malicious subkey to a legitimate     public key, RPM could wrongly trust a malicious signature. The greatest impact of this flaw is to data     integrity. To exploit this flaw, an attacker must either compromise an RPM repository or convince an     administrator to install an untrusted RPM or public key. It is strongly recommended to only use RPMs and     public keys from trusted sources. (CVE-2021-3521)

  - A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass     the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root     privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as     system availability. (CVE-2021-35937)

  - A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials     after installing a file. A local unprivileged user could use this flaw to exchange the original file with     a symbolic link to a security-critical file and escalate their privileges on the system. The highest     threat from this vulnerability is to data confidentiality and integrity as well as system availability.
    (CVE-2021-35938)

  - It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only     implemented for the parent directory of the file to be created. A local unprivileged user who owns another     ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this     vulnerability is to data confidentiality and integrity as well as system availability. (CVE-2021-35939)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
193941	CentOS 9 : rpm-4.16.1.3-26.el9	Nessus	CentOS Local Security Checks	medium
192453	Amazon Linux 2023 : python3-rpm, rpm, rpm-apidocs (ALAS2023-2024-573)	Nessus	Amazon Linux Local Security Checks	medium
190425	Rocky Linux 8 : rpm (RLSA-2024:0647)	Nessus	Rocky Linux Local Security Checks	medium
189947	AlmaLinux 8 : rpm (ALSA-2024:0647)	Nessus	Alma Linux Local Security Checks	medium
189921	Oracle Linux 8 : rpm (ELSA-2024-0647)	Nessus	Oracle Linux Local Security Checks	medium
189906	CentOS 8 : rpm (CESA-2024:0647)	Nessus	CentOS Local Security Checks	medium
189905	RHEL 8 : rpm (RHSA-2024:0647)	Nessus	Red Hat Local Security Checks	medium
189805	RHEL 8 : rpm (RHSA-2024:0582)	Nessus	Red Hat Local Security Checks	medium
189627	AlmaLinux 9 : rpm (ALSA-2024:0463)	Nessus	Alma Linux Local Security Checks	medium
189590	Oracle Linux 9 : rpm (ELSA-2024-0463)	Nessus	Oracle Linux Local Security Checks	medium
189556	RHEL 8 : rpm (RHSA-2024:0424)	Nessus	Red Hat Local Security Checks	medium
189551	RHEL 9 : rpm (RHSA-2024:0463)	Nessus	Red Hat Local Security Checks	medium
189547	RHEL 9 : rpm (RHSA-2024:0435)	Nessus	Red Hat Local Security Checks	medium
189540	RHEL 9 : rpm (RHSA-2024:0453)	Nessus	Red Hat Local Security Checks	medium
169845	EulerOS Virtualization 2.9.1 : rpm (EulerOS-SA-2023-1202)	Nessus	Huawei Local Security Checks	medium
169821	EulerOS Virtualization 2.10.0 : rpm (EulerOS-SA-2023-1174)	Nessus	Huawei Local Security Checks	medium
169737	EulerOS Virtualization 2.10.1 : rpm (EulerOS-SA-2023-1153)	Nessus	Huawei Local Security Checks	medium
169723	EulerOS Virtualization 2.9.0 : rpm (EulerOS-SA-2023-1232)	Nessus	Huawei Local Security Checks	medium
169007	EulerOS 2.0 SP10 : rpm (EulerOS-SA-2022-2829)	Nessus	Huawei Local Security Checks	medium
168989	EulerOS 2.0 SP10 : rpm (EulerOS-SA-2022-2855)	Nessus	Huawei Local Security Checks	medium
168328	FreeBSD : rpm4 -- Multiple Vulnerabilities (0c52abde-717b-11ed-98ca-40b034429ecf)	Nessus	FreeBSD Local Security Checks	medium
167410	EulerOS 2.0 SP9 : rpm (EulerOS-SA-2022-2741)	Nessus	Huawei Local Security Checks	medium
167372	EulerOS 2.0 SP9 : rpm (EulerOS-SA-2022-2776)	Nessus	Huawei Local Security Checks	medium
166726	GLSA-202210-22 : RPM: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	medium

Detections

Analytics

CVE-2021-35938

medium

Tenable Plugins

medium

medium

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