libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in pattern.c.

vendor_unpatched cve-2025-27113: Unpatched CVEs for Debian Linux (cve-2025-27113)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-896 advisory.

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements     in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE:
    this is similar to CVE-2017-9047. (CVE-2025-24928)

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

Tenable has extracted the preceding description block directly from the tested product 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 version of Apple iOS running on the mobile device is prior to 18.4. It is, therefore, affected by multiple vulnerabilities.

The remote host is running a version of macOS / Mac OS X that is 14.x prior to 14.7.5. It is, therefore, affected by multiple vulnerabilities:

  - A use after free issue was addressed with improved memory management. This issue is fixed in visionOS 2.3,     iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, watchOS 11.3, tvOS 18.3. A malicious application may be able     to elevate privileges. Apple is aware of a report that this issue may have been actively exploited against     versions of iOS before iOS 17.2. (CVE-2025-24085)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

  - When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache     entry, making it end sooner or later than otherwise intended. This affects curl using applications that     enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like     `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS     cache either needs to have been populated manually or there needs to have been previous HTTPS accesses     done as the cache needs to have entries for the domains involved to trigger this problem.) When     `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's     expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The     result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different     period of time than what was asked for by the origin server. If `example.com` for example stops supporting     HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set)     timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently     switch back to insecure HTTP earlier than otherwise intended. (CVE-2024-9681)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

  - This issue was addressed through improved state management. (CVE-2025-24097, CVE-2025-24173,     CVE-2025-24178, CVE-2025-24198, CVE-2025-24212, CVE-2025-24238, CVE-2025-24244, CVE-2025-30433,     CVE-2025-30438, CVE-2025-30454, CVE-2025-30456, CVE-2025-30470, CVE-2025-31182, CVE-2025-31183,     CVE-2025-31191)

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

The remote host is running a version of macOS / Mac OS X that is 13.x prior to 13.7.5. It is, therefore, affected by multiple vulnerabilities:

  - A use after free issue was addressed with improved memory management. This issue is fixed in visionOS 2.3,     iOS 18.3 and iPadOS 18.3, macOS Sequoia 15.3, watchOS 11.3, tvOS 18.3. A malicious application may be able     to elevate privileges. Apple is aware of a report that this issue may have been actively exploited against     versions of iOS before iOS 17.2. (CVE-2025-24085)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

  - When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache     entry, making it end sooner or later than otherwise intended. This affects curl using applications that     enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like     `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS     cache either needs to have been populated manually or there needs to have been previous HTTPS accesses     done as the cache needs to have entries for the domains involved to trigger this problem.) When     `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's     expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The     result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different     period of time than what was asked for by the origin server. If `example.com` for example stops supporting     HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set)     timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently     switch back to insecure HTTP earlier than otherwise intended. (CVE-2024-9681)

  - The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.7.3, macOS Sequoia     15.3, macOS Sonoma 14.7.3. Parsing a maliciously crafted file may lead to an unexpected app termination.
    (CVE-2025-24139)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

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

The remote host is running a version of macOS / Mac OS X that is 15.x prior to 15.4. It is, therefore, affected by multiple vulnerabilities:

  - execute_filter_delta in archive_read_support_format_rar.c in libarchive before 3.7.5 allows out-of-bounds     access via a crafted archive file because src can move beyond dst. (CVE-2024-48958)

  - The email module of Python through 3.11.3 incorrectly parses e-mail addresses that contain a special     character. The wrong portion of an RFC2822 header is identified as the value of the addr-spec. In some     applications, an attacker can bypass a protection mechanism in which application access is granted only     after verifying receipt of e-mail to a specific domain (e.g., only @company.example.com addresses may be     used for signup). This occurs in email/_parseaddr.py in recent versions of Python. (CVE-2023-27043)

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

  - When curl is asked to use HSTS, the expiry time for a subdomain might overwrite a parent domain's cache     entry, making it end sooner or later than otherwise intended. This affects curl using applications that     enable HSTS and use URLs with the insecure `HTTP://` scheme and perform transfers with hosts like     `x.example.com` as well as `example.com` where the first host is a subdomain of the second host. (The HSTS     cache either needs to have been populated manually or there needs to have been previous HTTPS accesses     done as the cache needs to have entries for the domains involved to trigger this problem.) When     `x.example.com` responds with `Strict-Transport-Security:` headers, this bug can make the subdomain's     expiry timeout *bleed over* and get set for the parent domain `example.com` in curl's HSTS cache. The     result of a triggered bug is that HTTP accesses to `example.com` get converted to HTTPS for a different     period of time than what was asked for by the origin server. If `example.com` for example stops supporting     HTTPS at its expiry time, curl might then fail to access `http://example.com` until the (wrongly set)     timeout expires. This bug can also expire the parent's entry *earlier*, thus making curl inadvertently     switch back to insecure HTTP earlier than otherwise intended. (CVE-2024-9681)

  - A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Ventura     13.7.3, macOS Sonoma 14.7.3. An app may be able to access removable volumes without user consent.
    (CVE-2025-24093)

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

The version of libxml2 installed on the remote host is prior to 2.9.1-6. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2794 advisory.

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free in xmlSchemaIDCFillNodeTables and     xmlSchemaBubbleIDCNodeTables in xmlschemas.c. To exploit this, a crafted XML document must be validated     against an XML schema with certain identity constraints, or a crafted XML schema must be used.
    (CVE-2024-56171)

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based buffer overflow in xmlSnprintfElements     in valid.c. To exploit this, DTD validation must occur for an untrusted document or untrusted DTD. NOTE:
    this is similar to CVE-2017-9047. (CVE-2025-24928)

    libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

Tenable has extracted the preceding description block directly from the tested product 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 SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0976-1 advisory.

    - CVE-2024-56171: Fixed use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in     xmlschemas.c (bsc#1237363).
    - CVE-2025-24928: Fixed stack-based buffer overflow in xmlSnprintfElements in valid.c (bsc#1237370).
    - CVE-2025-27113: Fixed NULL Pointer Dereference in libxml2 xmlPatMatch (bsc#1237418).

Tenable has extracted the preceding description block directly from the SUSE 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 version of libxml2 installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-27113 advisory.

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

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

An update of the libxml2 package has been released.

An update of the gettext package has been released.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0748-1 advisory.

    - CVE-2024-56171: use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in     xmlschemas.c       (bsc#1237363).
    - CVE-2025-24928: stack-based buffer overflow in xmlSnprintfElements in valid.c (bsc#1237370).
    - CVE-2025-27113: NULL pointer dereference in xmlPatMatch in pattern.c (bsc#1237418).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0747-1 advisory.

    - CVE-2024-56171: use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in     xmlschemas.c       (bsc#1237363).
    - CVE-2025-24928: stack-based buffer overflow in xmlSnprintfElements in valid.c (bsc#1237370).
    - CVE-2025-27113: NULL pointer dereference in xmlPatMatch in pattern.c (bsc#1237418).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0746-1 advisory.

    - CVE-2024-56171: use-after-free in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in     xmlschemas.c       (bsc#1237363).
    - CVE-2025-24928: stack-based buffer overflow in xmlSnprintfElements in valid.c (bsc#1237370).
    - CVE-2025-27113: NULL pointer dereference in xmlPatMatch in pattern.c (bsc#1237418).

Tenable has extracted the preceding description block directly from the SUSE 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 version of libxml2 installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-27113 advisory.

  - libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer dereference in xmlPatMatch in     pattern.c. (CVE-2025-27113)

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

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7302-1 advisory.

    It was discovered that libxml2 incorrectly handled certain memory operations. A remote attacker could use     this issue to cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary     code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2022-49043)

    It was discovered that the libxml2 xmllint tool incorrectly handled certain memory operations. If a user     or automated system were tricked into running xmllint on a specially crafted xml file, a remote attacker     could cause xmllint to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS,     Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2024-34459)

    It was discovered that libxml2 did not properly manage memory. An attacker could possibly use this issue     to cause a denial of service or execute arbitrary code. (CVE-2024-56171)

    It was discovered that libxml2 could be made to write out of bounds. An attacker could possibly use this     issue to cause a denial of service or execute arbitrary code. (CVE-2025-24928)

    It was discovered that libxml2 could be made to dereference invalid memory. An attacker could possibly use     this issue to cause a denial of service. (CVE-2025-27113)

Tenable has extracted the preceding description block directly from the Ubuntu 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 Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4064 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-4064-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                         Tobias Frost     February 22, 2025                             https://wiki.debian.org/LTS
    -------------------------------------------------------------------------

    Package        : libxml2     Version        : 2.9.10+dfsg-6.7+deb11u6     CVE ID         : CVE-2022-49043 CVE-2023-39615 CVE-2023-45322 CVE-2024-25062                      CVE-2024-56171 CVE-2025-24928 CVE-2025-27113     Debian Bug     : 1051230 1053629 1063234 1094238 1098320 1098321 1098322

    Multiple vulnerabilities have been found in libxml2, a library providing     support to read, modify and write XML and HTML files. These     vulnerabilities could potentially lead to denial of servie or other     unintended behaviors.

    CVE-2022-49043

        xmlXIncludeAddNode in xinclude.c in libxml2 before 2.11.0 has a         use-after-free.

    CVE-2023-39615

        libxml2 v2.11.0 was discovered to contain an out-of-bounds read via         the xmlSAX2StartElement() function at /libxml2/SAX2.c. This         vulnerability allows attackers to cause a Denial of Service (DoS)         via supplying a crafted XML file. NOTE: the vendor's position is         that the product does not support the legacy SAX1 interface with         custom callbacks; there is a crash even without crafted input.

    CVE-2023-45322

        libxml2 through 2.11.5 has a use-after-free that can only occur         after a certain memory allocation fails. This occurs in         xmlUnlinkNode in tree.c. NOTE: the vendor's position is I don't         think these issues are critical enough to warrant a CVE ID ...
        because an attacker typically can't control when memory allocations         fail.

    CVE-2024-25062

        An issue was discovered in libxml2 before 2.11.7 and 2.12.x before         2.12.5. When using the XML Reader interface with DTD validation and         XInclude expansion enabled, processing crafted XML documents can         lead to an xmlValidatePopElement use-after-free.

    CVE-2024-56171

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a use-after-free         in xmlSchemaIDCFillNodeTables and xmlSchemaBubbleIDCNodeTables in         xmlschemas.c. To exploit this, a crafted XML document must be         validated against an XML schema with certain identity constraints,         or a crafted XML schema must be used.

    CVE-2025-24928

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a stack-based         buffer overflow in xmlSnprintfElements in valid.c. To exploit this,         DTD validation must occur for an untrusted document or untrusted         DTD. NOTE: this is similar to CVE-2017-9047.

    CVE-2025-27113

        libxml2 before 2.12.10 and 2.13.x before 2.13.6 has a NULL pointer         dereference in xmlPatMatch in pattern.c.

    For Debian 11 bullseye, these problems have been fixed in version     2.9.10+dfsg-6.7+deb11u6.

    We recommend that you upgrade your libxml2 packages.

    For the detailed security status of libxml2 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/libxml2

    Further information about Debian LTS security advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://wiki.debian.org/LTS     Attachment:
    signature.asc     Description: PGP signature

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

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
233584	Amazon Linux 2023 : libxml2, libxml2-devel, libxml2-static (ALAS2023-2025-896)	Nessus	Amazon Linux Local Security Checks	high
233571	Apple iOS < 18.4 Multiple Vulnerabilities (122371)	Nessus	Mobile Devices	high
233570	macOS 14.x < 14.7.5 Multiple Vulnerabilities (122374)	Nessus	MacOS X Local Security Checks	high
233569	macOS 13.x < 13.7.5 Multiple Vulnerabilities (122375)	Nessus	MacOS X Local Security Checks	high
233568	macOS 15.x < 15.4 Multiple Vulnerabilities (122373)	Nessus	MacOS X Local Security Checks	critical
233379	Amazon Linux 2 : libxml2 (ALAS-2025-2794)	Nessus	Amazon Linux Local Security Checks	high
233209	SUSE SLES15 / openSUSE 15 Security Update : libxml2 (SUSE-SU-2025:0976-1)	Nessus	SuSE Local Security Checks	high
233122	Azure Linux 3.0 Security Update: libxml2 (CVE-2025-27113)	Nessus	Azure Linux Local Security Checks	high
232339	Photon OS 5.0: Libxml2 PHSA-2025-5.0-0485	Nessus	PhotonOS Local Security Checks	high
232336	Photon OS 4.0: Gettext PHSA-2025-4.0-0765	Nessus	PhotonOS Local Security Checks	high
232333	Photon OS 5.0: Gettext PHSA-2025-5.0-0485	Nessus	PhotonOS Local Security Checks	high
232332	Photon OS 4.0: Libxml2 PHSA-2025-4.0-0765	Nessus	PhotonOS Local Security Checks	high
216980	SUSE SLES15 Security Update : libxml2 (SUSE-SU-2025:0748-1)	Nessus	SuSE Local Security Checks	high
216965	SUSE SLES12 Security Update : libxml2 (SUSE-SU-2025:0747-1)	Nessus	SuSE Local Security Checks	high
216959	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : libxml2 (SUSE-SU-2025:0746-1)	Nessus	SuSE Local Security Checks	high
216896	CBL Mariner 2.0 Security Update: libxml2 (CVE-2025-27113)	Nessus	MarinerOS Local Security Checks	high
216780	Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 : libxml2 vulnerabilities (USN-7302-1)	Nessus	Ubuntu Local Security Checks	high
216663	Debian dla-4064 : libxml2 - security update	Nessus	Debian Local Security Checks	high

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