A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from files owned by privileged users to unprivileged ones under the right condition.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

Note that Nessus relies on the presence of the package as reported by the vendor.

An update of the glib package has been released.

An update of the pkg package has been released.

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2021:4385 advisory.

  - An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with     G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also     creates the target of the symlink as an empty file, which could conceivably have security relevance if the     symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents     of that file correctly remain unchanged.) (CVE-2021-28153)

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

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 glib2 packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

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 glib2 installed on the remote host is prior to 2.56.1-9. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2023-2058 advisory.

    A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

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

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

The version of glib2 installed on the remote host is prior to 2.36.3-5.23. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2023-1742 advisory.

    In GNOME GLib 2.56.1, g_markup_parse_context_end_parse() in gmarkup.c has a NULL pointer dereference.
    (CVE-2018-16428)

    GNOME GLib 2.56.1 has an out-of-bounds read vulnerability in g_markup_parse_context_parse() in gmarkup.c,     related to utf8_str(). (CVE-2018-16429)

    The keyfile settings backend in GNOME GLib (aka glib2.0) before 2.60.0 creates directories using     g_file_make_directory_with_parents (kfsb->dir, NULL, NULL) and files using g_file_replace_contents     (kfsb->file, contents, length, NULL, FALSE, G_FILE_CREATE_REPLACE_DESTINATION, NULL, NULL, NULL).
    Consequently, it does not properly restrict directory (and file) permissions. Instead, for directories,     0777 permissions are used; for files, default file permissions are used. This is similar to     CVE-2019-12450. (CVE-2019-13012)

    An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with     G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also     creates the target of the symlink as an empty file, which could conceivably have security relevance if the     symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents     of that file correctly remain unchanged.) (CVE-2021-28153)

    A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

    The upstream bug report describes this issue as follows:

    A vulnerability was found in GLib2.0, where DoS caused by handling a malicious text-form variant which is     structured to cause looping superlinear to its text size. Applications are at risk if they parse untrusted     text-form variants. (CVE-2023-24593)

    The upstream bug report describes this issue as follows:

    A vulnerability was found in GLib2.0, where DoS caused by handling a malicious text-form variant which is     structured to cause looping superlinear to its text size. Applications are at risk if they parse untrusted     text-form variants. (CVE-2023-25180)

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.

According to the versions of the glib2 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

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 remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3110 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-3110-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     September 15, 2022                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : glib2.0     Version        : 2.58.3-2+deb10u4     CVE ID         : CVE-2021-3800

    It was found that GLib, a general-purpose portable utility library,     could be used to print partial contents from arbitrary files. This     could be exploited from setuid binaries linking to GLib for information     disclosure of files with a specific format.

    For Debian 10 buster, this problem has been fixed in version     2.58.3-2+deb10u4.

    We recommend that you upgrade your glib2.0 packages.

    For the detailed security status of glib2.0 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/glib2.0

    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

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

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

The remote NewStart CGSL host, running version MAIN 6.02, has glib2 packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with     G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also     creates the target of the symlink as an empty file, which could conceivably have security relevance if the     symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents     of that file correctly remain unchanged.) (CVE-2021-28153)

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

  - An issue was discovered in GNOME GLib before 2.66.7 and 2.67.x before 2.67.4. If g_byte_array_new_take()     was called with a buffer of 4GB or more on a 64-bit platform, the length would be truncated modulo 2**32,     causing unintended length truncation. (CVE-2021-27218)

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 SLED12 / SLED_SAP12 / SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2022:0828-1 advisory.

  - A flaw was found in glib before version 2.63.6. Due to random charset alias, pkexec can leak content from     files owned by privileged users to unprivileged ones under the right condition. (CVE-2021-3800)

Note that Nessus has not tested for this issue 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-2021:4385 advisory.

  - An issue was discovered in GNOME GLib before 2.66.8. When g_file_replace() is used with     G_FILE_CREATE_REPLACE_DESTINATION to replace a path that is a dangling symlink, it incorrectly also     creates the target of the symlink as an empty file, which could conceivably have security relevance if the     symlink is attacker-controlled. (If the path is a symlink to a file that already exists, then the contents     of that file correctly remain unchanged.) (CVE-2021-28153)

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 16.04 ESM / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-5189-1 advisory.

    It was discovered that GLib incorrectly handled certain environment variables. An attacker could possibly     use this issue to escalate privileges.

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

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-2021-4385 advisory.

    - Refresh CVE-2021-27219 patcheset, using better-targeted fixes       Resolves: #1939108

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-2021:4385 advisory.

    GLib provides the core application building blocks for libraries and applications written in C. It     provides the core object system used in GNOME, the main loop implementation, and a large set of utility     functions for strings and common data structures.

    Security Fix(es):

    * glib2: Possible privilege escalation thourgh pkexec and aliases (CVE-2021-3800)

    * glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink     (CVE-2021-28153)

    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 8.5 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.

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2021:4385 advisory.

  - glib: g_file_replace() with G_FILE_CREATE_REPLACE_DESTINATION creates empty target for dangling symlink     (CVE-2021-28153)

  - glib2: Possible privilege escalation thourgh pkexec and aliases (CVE-2021-3800)

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

ID	Name	Product	Family	Severity
224004	Linux Distros Unpatched Vulnerability : CVE-2021-3800	Nessus	Misc.	medium
204069	Photon OS 3.0: Glib PHSA-2022-3.0-0449	Nessus	PhotonOS Local Security Checks	medium
203955	Photon OS 3.0: Pkg PHSA-2022-3.0-0507	Nessus	PhotonOS Local Security Checks	medium
203228	Photon OS 4.0: Pkg PHSA-2022-4.0-0300	Nessus	PhotonOS Local Security Checks	medium
184548	Rocky Linux 8 : glib2 (RLSA-2021:4385)	Nessus	Rocky Linux Local Security Checks	medium
178861	EulerOS Virtualization 3.0.6.6 : glib2 (EulerOS-SA-2023-2410)	Nessus	Huawei Local Security Checks	medium
177135	EulerOS Virtualization 3.0.6.0 : glib2 (EulerOS-SA-2023-2220)	Nessus	Huawei Local Security Checks	medium
176699	Amazon Linux 2 : glib2 (ALAS-2023-2058)	Nessus	Amazon Linux Local Security Checks	medium
175221	EulerOS Virtualization 3.0.2.0 : glib2 (EulerOS-SA-2023-1701)	Nessus	Huawei Local Security Checks	medium
175096	Amazon Linux AMI : glib2 (ALAS-2023-1742)	Nessus	Amazon Linux Local Security Checks	critical
172347	EulerOS 2.0 SP5 : glib2 (EulerOS-SA-2023-1503)	Nessus	Huawei Local Security Checks	medium
171174	EulerOS 2.0 SP8 : glib2 (EulerOS-SA-2023-1315)	Nessus	Huawei Local Security Checks	medium
165206	Debian dla-3110 : libglib2.0-0 - security update	Nessus	Debian Local Security Checks	medium
160748	NewStart CGSL MAIN 6.02 : glib2 Multiple Vulnerabilities (NS-SA-2022-0069)	Nessus	NewStart CGSL Local Security Checks	medium
159018	SUSE SLED12 / SLES12 Security Update : glib2 (SUSE-SU-2022:0828-1)	Nessus	SuSE Local Security Checks	medium
157589	AlmaLinux 8 : glib2 (ALSA-2021:4385)	Nessus	Alma Linux Local Security Checks	medium
156040	Ubuntu 16.04 ESM / 18.04 LTS : GLib vulnerability (USN-5189-1)	Nessus	Ubuntu Local Security Checks	medium
155402	Oracle Linux 8 : glib2 (ELSA-2021-4385)	Nessus	Oracle Linux Local Security Checks	medium
155170	RHEL 8 : glib2 (RHSA-2021:4385)	Nessus	Red Hat Local Security Checks	medium
155099	CentOS 8 : glib2 (CESA-2021:4385)	Nessus	CentOS Local Security Checks	medium

Detections

Analytics

CVE-2021-3800

medium

Tenable Plugins

medium

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critical

medium

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