A flaw was found in glib. Missing validation of offset and count parameters in the g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When specially crafted values are provided, this overflow results in an incorrect size being passed to memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service (DoS).

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:0458-1 advisory.

    - CVE-2026-1485: Fixed buffer underflow and out-of-bounds access due to integer wraparound in content type     parsing (bsc#1257354).
    - CVE-2026-1484: Fixed buffer underflow and out-of-bounds access due to miscalculated buffer boundaries in     the Base64 encoding routine (bsc#1257355).
    - CVE-2026-1489: Fixed undersized heap allocation followed by out-of-bounds access due to integer overflow     in Unicode case conversion (bsc#1257353).
    - CVE-2026-0988: Fixed a potential integer overflow in g_buffered_input_stream_peek (bsc#1257049).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES16 / SLES_SAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:20221-1 advisory.

    - CVE-2026-1485: Fixed buffer underflow and out-of-bounds access due to integer wraparound in content type     parsing (bsc#1257354).
    - CVE-2026-1484: Fixed buffer underflow and out-of-bounds access due to miscalculated buffer boundaries in     the Base64 encoding routine (bsc#1257355).
    - CVE-2026-1489: Fixed undersized heap allocation followed by out-of-bounds access due to integer overflow     in Unicode case conversion (bsc#1257353).
    - CVE-2026-0988: Fixed a potential integer overflow in g_buffered_input_stream_peek (bsc#1257049).

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-2026:20150-1 advisory.

    - CVE-2026-1485: Fixed buffer underflow and out-of-bounds access due to integer wraparound in content type     parsing (bsc#1257354).
    - CVE-2026-1484: Fixed buffer underflow and out-of-bounds access due to miscalculated buffer boundaries in     the Base64 encoding routine (bsc#1257355).
    - CVE-2026-1489: Fixed undersized heap allocation followed by out-of-bounds access due to integer overflow     in Unicode case conversion (bsc#1257353).
    - CVE-2026-0988: Fixed a potential integer overflow in g_buffered_input_stream_peek (bsc#1257049).

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 a vulnerability as referenced in the SUSE-SU-2026:0286-1 advisory.

    - CVE-2026-0988: Fixed a potential integer overflow in g_buffered_input_stream_peek (bsc#1257049).

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-0955012bb5 advisory.

    Backport patch for CVE-2026.0988.

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-2026-46fe567fd3 advisory.

    Backport patch for CVE-2026.0988.

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 SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:0266-1 advisory.

    - CVE-2026-0988: Fixed a potential integer overflow in g_buffered_input_stream_peek (bsc#1257049).

Tenable has extracted the preceding description block directly from the SUSE 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 / 25.10 host has packages installed that are affected by a vulnerability as referenced in the USN-7971-1 advisory.

    It was discovered that GLib incorrectly handled the buffered input stream API. An attacker could use this     issue to cause GLib to crash, resulting in a denial of service, or possibly execute arbitrary code.

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 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. Missing validation of offset and count parameters in the     g_buffered_input_stream_peek() function can lead to an integer overflow during length calculation. When     specially crafted values are provided, this overflow results in an incorrect size being passed to     memcpy(), triggering a buffer overflow. This can cause application crashes, leading to a Denial of Service     (DoS). (CVE-2026-0988)

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

ID	Name	Product	Family	Severity
298926	SUSE SLES15 Security Update : glib2 (SUSE-SU-2026:0458-1)	Nessus	SuSE Local Security Checks	low
298230	SUSE SLES16 Security Update : glib2 (SUSE-SU-2026:20221-1)	Nessus	SuSE Local Security Checks	low
297785	openSUSE 16 Security Update : glib2 (openSUSE-SU-2026:20150-1)	Nessus	SuSE Local Security Checks	low
296663	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : glib2 (SUSE-SU-2026:0286-1)	Nessus	SuSE Local Security Checks	low
296577	Fedora 42 : mingw-glib2 (2026-0955012bb5)	Nessus	Fedora Local Security Checks	low
296552	Fedora 43 : mingw-glib2 (2026-46fe567fd3)	Nessus	Fedora Local Security Checks	low
296475	SUSE SLES12 Security Update : glib2 (SUSE-SU-2026:0266-1)	Nessus	SuSE Local Security Checks	low
296250	Ubuntu 22.04 LTS / 24.04 LTS / 25.10 : GLib vulnerability (USN-7971-1)	Nessus	Ubuntu Local Security Checks	low
286810	Linux Distros Unpatched Vulnerability : CVE-2026-0988	Nessus	Misc.	low

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CVE-2026-0988

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