A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.

An update of the glib package has been released.

The remote SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20032-1 advisory.

    Update to version 2.84.4.

    Security issues fixed:

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and `string_parse()`     functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).
    - CVE-2025-7039: integer overflow when creating temporary files may lead to an out-of-bounds memory access     that can be       used for path traversal or exposure of sensitive content in a temporary file (bsc#1249055).

    Other issues fixed and changes:

    - Fix GFile leak in `g_local_file_set_display_name` during error handling.
    - Fix incorrect output parameter handling in closure helper of `g_settings_bind_with_mapping_closures`.
    - `gfileutils`: fix computation of temporary file name.
    - Fix GFile leak in  `g_local_file_set_display_name()`.
    - `gthreadpool`: catch `pool_spawner` creation failure.
    - `gio/filenamecompleter`: fix leaks.
    - `gfilenamecompleter`: fix `g_object_unref()` of undefined value.

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 openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20018-1 advisory.

    Update to version 2.84.4.

    Security issues fixed:

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and `string_parse()`     functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).
    - CVE-2025-7039: integer overflow when creating temporary files may lead to an out-of-bounds memory access     that can be       used for path traversal or exposure of sensitive content in a temporary file (bsc#1249055).

    Other issues fixed and changes:

    - Fix GFile leak in `g_local_file_set_display_name` during error handling.
    - Fix incorrect output parameter handling in closure helper of `g_settings_bind_with_mapping_closures`.
    - `gfileutils`: fix computation of temporary file name.
    - Fix GFile leak in  `g_local_file_set_display_name()`.
    - `gthreadpool`: catch `pool_spawner` creation failure.
    - `gio/filenamecompleter`: fix leaks.
    - `gfilenamecompleter`: fix `g_object_unref()` of undefined value.

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.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1349 advisory.

    Buffer underflow on Glib through glib/gvariant via bytestring_parse() or string_parse() leads to OOB     Write. (CVE-2025-14087)

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 remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7942-1 advisory.

    It was discovered that GLib incorrectly handled escaping URI strings. An attacker could use this issue to     cause GLib to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2025-13601)

    It was discovered that GLib incorrectly parsed certain GVariants. An attacker could use this issue to     cause GLib to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2025-14087)

    It was discovered that GLib incorrectly parsed certain long invalid ISO 8601 timestamps. An attacker could     possibly use this issue to cause GLib to crash, resulting in a denial of service. This issue only affected     Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2025-3360)

    It was discovered that GLib incorrectly handled GString memory operations. An attacker could use this     issue to cause GLib to crash, resulting in a denial of service, or possibly execute arbitrary code. This     issue only affected Ubuntu 24.04 LTS and Ubuntu 25.04. (CVE-2025-6052)

    It was discovered that GLib incorrectly handled creating temporary files. An attacker could possibly use     this issue to access unauthorized data. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and     Ubuntu 25.04. (CVE-2025-7039)

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 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-2026:0018-1 advisory.

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and     `string_parse()`functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).

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 glib2 installed on the remote host is prior to 2.56.1-9. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-3117 advisory.

    Buffer underflow on Glib through glib/gvariant via bytestring_parse() or string_parse() leads to OOB     Write. (CVE-2025-14087)

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 Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0970 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2025-14512:
    A flaw was found in glib. This vulnerability allows a heap buffer overflow and denial-of-service (DoS) via     an integer overflow in GLib's GIO (GLib Input/Output) escape_byte_string() function when processing     malicious file or remote filesystem attribute values.

    CVE-2025-14087:
    A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap     corruption, leading to a denial of service or potential code execution via a buffer-underflow in the     GVariant parser when processing maliciously crafted input strings.

Tenable has extracted the preceding description block directly from the Tencent 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:4504-1 advisory.

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and `string_parse()`     functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).

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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-b2df36b70a advisory.

    Update to glib-2.84.4 and backport fixes for CVE-2025-13601, CVE-2025-14087 and CVE-2025-14512.

Tenable has extracted the preceding description block directly from the Fedora 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 Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-ecdc29aa34 advisory.

    Update to 2.86.3, fixes CVE-2025-13601, CVE-2025-14087 and CVE-2025-14512.

Tenable has extracted the preceding description block directly from the Fedora 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 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:4442-1 advisory.

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and     `string_parse()`functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).

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-2025:4441-1 advisory.

    - CVE-2025-14512: integer overflow in the GIO `escape_byte_string()` function when processing malicious     files or remote       filesystem attribute values can lead to denial-of-service (bsc#1254878).
    - CVE-2025-14087: buffer underflow in the GVariant parser `bytestring_parse()` and `string_parse()`     functions when       processing attacker-influenced data may lead to crash or code execution (bsc#1254662).
    - CVE-2025-13601: heap-based buffer overflow in the `g_escape_uri_string()` function when processing     strings with a       large number of unacceptable characters may lead to crash or code execution (bsc#1254297).

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 Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4412 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4412-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/               Emilio Pozuelo Monfort     December 16, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : glib2.0     Version        : 2.66.8-1+deb11u7     CVE ID         : CVE-2025-4373 CVE-2025-7039 CVE-2025-13601 CVE-2025-14087                      CVE-2025-14512     Debian Bug     : 1104930 1110640 1121488 1122346 1122347

    Multiple issues were found in GLib, a general-purpose, portable utility     library, that could lead to denial of service, memory corruption or     potentially arbitrary code execution if maliciously crafted data is     processed.

    For Debian 11 bullseye, these problems have been fixed in version     2.66.8-1+deb11u7.

    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 these issues but has instead relied only on the application's self-reported version number.

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 (Gnome Lib). This vulnerability allows a remote attacker to cause heap     corruption, leading to a denial of service or potential code execution via a buffer-underflow in the     GVariant parser when processing maliciously crafted input strings. (CVE-2025-14087)

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

ID	Name	Product	Family	Severity
297825	Photon OS 5.0: Glib PHSA-2026-5.0-0732	Nessus	PhotonOS Local Security Checks	critical
297767	Photon OS 4.0: Glib PHSA-2026-4.0-0943	Nessus	PhotonOS Local Security Checks	critical
288032	SUSE SLES16 Security Update : glib2 (SUSE-SU-2026:20032-1)	Nessus	SuSE Local Security Checks	critical
284812	openSUSE 16 Security Update : glib2 (openSUSE-SU-2026:20018-1)	Nessus	SuSE Local Security Checks	critical
282403	Amazon Linux 2023 : glib2, glib2-devel, glib2-static (ALAS2023-2025-1349)	Nessus	Amazon Linux Local Security Checks	high
281923	Ubuntu 22.04 LTS / 24.04 LTS / 25.04 / 25.10 : GLib vulnerabilities (USN-7942-1)	Nessus	Ubuntu Local Security Checks	low
281829	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : glib2 (SUSE-SU-2026:0018-1)	Nessus	SuSE Local Security Checks	high
281809	Amazon Linux 2 : glib2, --advisory ALAS2-2025-3117 (ALAS-2025-3117)	Nessus	Amazon Linux Local Security Checks	high
279993	TencentOS Server 4: glib2 (TSSA-2025:0970)	Nessus	Tencent Local Security Checks	medium
279671	SUSE SLES15 Security Update : glib2 (SUSE-SU-2025:4504-1)	Nessus	SuSE Local Security Checks	high
279593	Fedora 42 : mingw-glib2 (2025-b2df36b70a)	Nessus	Fedora Local Security Checks	high
279563	Fedora 43 : mingw-glib2 (2025-ecdc29aa34)	Nessus	Fedora Local Security Checks	high
279357	SUSE SLES15 Security Update : glib2 (SUSE-SU-2025:4442-1)	Nessus	SuSE Local Security Checks	high
279355	SUSE SLES12 Security Update : glib2 (SUSE-SU-2025:4441-1)	Nessus	SuSE Local Security Checks	high
278740	Debian dla-4412 : libglib2.0-0 - security update	Nessus	Debian Local Security Checks	low
277959	Linux Distros Unpatched Vulnerability : CVE-2025-14087	Nessus	Misc.	critical

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