An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file ownership because setfsuid is not used.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - gvfs: race condition in daemon/gvfsbackendadmin.c due to admin backend not implementing     query_info_on_read/write (CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used. (CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable. (CVE-2019-12449)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2020:1766 advisory.

  - There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.
    (CVE-2018-20337)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used. (CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write. (CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable. (CVE-2019-12449)

  - A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session. (CVE-2019-3825)

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-2020:1766 advisory.

  - There is a stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp in LibRaw     0.19.1. Crafted input will lead to a denial of service or possibly unspecified other impact.
    (CVE-2018-20337)

  - A vulnerability was discovered in gdm before 3.31.4. When timed login is enabled in configuration, an     attacker could bypass the lock screen by selecting the timed login user and waiting for the timer to     expire, at which time they would gain access to the logged-in user's session. (CVE-2019-3825)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used. (CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement query_info_on_read/write. (CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through 1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are unavailable. (CVE-2019-12449)

Note that Nessus has not tested for this issue 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-2020:1766 advisory.

  - LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (CVE-2018-20337)

  - gvfs: mishandling of file ownership in daemon/gvfsbackendadmin.c (CVE-2019-12447)

  - gvfs: race condition in daemon/gvfsbackendadmin.c due to admin backend not implementing     query_info_on_read/write (CVE-2019-12448)

  - gvfs: mishandling of file's user and group ownership in daemon/gvfsbackendadmin.c due to unavailability of     root privileges (CVE-2019-12449)

  - gdm: lock screen bypass when timed login is enabled (CVE-2019-3825)

Note that Nessus has not tested for this issue 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-2020-1766 advisory.

    - Fix CVE-2019-15690 (an integer overflow in HandleCursorShape() in a client)       (bug #1814343)

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-2020:1766 advisory.

    GNOME is the default desktop environment of Red Hat Enterprise Linux.

    Security Fix(es):

    * LibRaw: stack-based buffer overflow in the parse_makernote function of dcraw_common.cpp (CVE-2018-20337)

    * gdm: lock screen bypass when timed login is enabled (CVE-2019-3825)

    * gvfs: mishandling of file ownership in daemon/gvfsbackendadmin.c (CVE-2019-12447)

    * gvfs: race condition in daemon/gvfsbackendadmin.c due to admin backend not implementing     query_info_on_read/write (CVE-2019-12448)

    * gvfs: mishandling of file's user and group ownership in daemon/gvfsbackendadmin.c due to unavailability     of root privileges (CVE-2019-12449)

    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.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.2 Release Notes     linked from 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 gvfs packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - An issue was discovered in GNOME gvfs 1.29.4 through     1.41.2. daemon/gvfsbackendadmin.c mishandles file     ownership because setfsuid is not used.(CVE-2019-12447)

  - An issue was discovered in GNOME gvfs 1.29.4 through     1.41.2. daemon/gvfsbackendadmin.c has race conditions     because the admin backend doesn't implement     query_info_on_read/write.(CVE-2019-12448)

  - An issue was discovered in GNOME gvfs 1.29.4 through     1.41.2. daemon/gvfsbackendadmin.c mishandles a file's     user and group ownership during move (and copy with     G_FILE_COPY_ALL_METADATA) operations from admin:// to     file:// URIs, because root privileges are     unavailable.(CVE-2019-12449)

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.

Update to 1.38.3

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

Update to 1.40.2

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

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4053-1 advisory.

    It was discovered that GVfs incorrectly handled the admin backend. Files created or moved by the admin     backend could end up with the wrong ownership information, contrary to expectations. This issue only     affected Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. (CVE-2019-12447, CVE-2019-12448,     CVE-2019-12449)

    It was discovered that GVfs incorrectly handled authentication on its private D-Bus socket. A local     attacker could possibly connect to this socket and issue D-Bus calls. (CVE-2019-12795)

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.

This update for gvfs fixes the following issues :

Security issues fixed :

  - CVE-2019-12795: Fixed a vulnerability which could have     allowed attacks via local D-Bus method calls     (bsc#1137930).

  - CVE-2019-12447: Fixed an improper handling of file     ownership in daemon/gvfsbackendadmin.c due to no use of     setfsuid (bsc#1136986). 

  - CVE-2019-12449: Fixed an improper handling of file's     user and group ownership in daemon/gvfsbackendadmin.c     (bsc#1136992).

  - CVE-2019-12448: Fixed race conditions in     daemon/gvfsbackendadmin.c due to implementation of     query_info_on_read/write at admin backend (bsc#1136981).

Other issue addressed :

  - Drop polkit rules files that are only relevant for wheel     group (bsc#1125433).

This update was imported from the SUSE:SLE-15:Update update project.

This update for gvfs fixes the following issues :

Security issues fixed :

CVE-2019-12795: Fixed a vulnerability which could have allowed attacks via local D-Bus method calls (bsc#1137930).

CVE-2019-12447: Fixed an improper handling of file ownership in daemon/gvfsbackendadmin.c due to no use of setfsuid (bsc#1136986).

CVE-2019-12449: Fixed an improper handling of file's user and group ownership in daemon/gvfsbackendadmin.c (bsc#1136992).

CVE-2019-12448: Fixed race conditions in daemon/gvfsbackendadmin.c due to implementation of query_info_on_read/write at admin backend (bsc#1136981).

Other issue addressed: Drop polkit rules files that are only relevant for wheel group (bsc#1125433).

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

ID	Name	Product	Family	Severity
199151	RHEL 7 : gvfs (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	high
184678	Rocky Linux 8 : GNOME (RLSA-2020:1766)	Nessus	Rocky Linux Local Security Checks	high
157605	AlmaLinux 8 : GNOME (ALSA-2020:1766)	Nessus	Alma Linux Local Security Checks	high
145863	CentOS 8 : GNOME (CESA-2020:1766)	Nessus	CentOS Local Security Checks	high
140034	Oracle Linux 8 : GNOME (ELSA-2020-1766)	Nessus	Oracle Linux Local Security Checks	high
136113	RHEL 8 : GNOME (RHSA-2020:1766)	Nessus	Red Hat Local Security Checks	high
129438	EulerOS 2.0 SP8 : gvfs (EulerOS-SA-2019-2079)	Nessus	Huawei Local Security Checks	high
129125	EulerOS 2.0 SP5 : gvfs (EulerOS-SA-2019-1968)	Nessus	Huawei Local Security Checks	high
127533	Fedora 29 : gvfs (2019-e6b02af8b8)	Nessus	Fedora Local Security Checks	high
126838	Fedora 30 : gvfs (2019-6ed5523cc0)	Nessus	Fedora Local Security Checks	high
126598	Ubuntu 16.04 LTS / 18.04 LTS : GVfs vulnerabilities (USN-4053-1)	Nessus	Ubuntu Local Security Checks	high
126523	openSUSE Security Update : gvfs (openSUSE-2019-1699)	Nessus	SuSE Local Security Checks	high
126522	openSUSE Security Update : gvfs (openSUSE-2019-1697)	Nessus	SuSE Local Security Checks	high
126444	SUSE SLED15 / SLES15 Security Update : gvfs (SUSE-SU-2019:1717-1)	Nessus	SuSE Local Security Checks	high

Detections

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CVE-2019-12447

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