VDB-341736 · CVE-2026-0988 · Nessus 296475

GLib g_buffered_input_stream_peek integer underflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in GLib. Affected is the function g_buffered_input_stream_peek. The manipulation results in integer underflow. This vulnerability is identified as CVE-2026-0988. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in GLib (the affected version unknown). It has been classified as problematic. Affected is the function g_buffered_input_stream_peek. The manipulation with an unknown input leads to a integer underflow vulnerability. CWE is classifying the issue as CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. This is going to have an impact on availability. CVE summarizes:

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 advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2026-0988. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 296475 (SUSE SLES12 Security Update : glib2 (SUSE-SU-2026:0266-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at bodhi.fedoraproject.org.

The vulnerability is also documented in the vulnerability database at Tenable (296475). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

GLib

CPE 2.3info

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CPE 2.2info

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CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector: 🔒

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 296475
Nessus Name: SUSE SLES12 Security Update : glib2 (SUSE-SU-2026:0266-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: bodhi.fedoraproject.org

Timelineinfo

01/18/2026 Advisory disclosed
01/18/2026 +0 days VulDB entry created
03/19/2026 +60 days VulDB entry last update

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2026-0988 (🔒)
GCVE (CVE): GCVE-0-2026-0988
GCVE (VulDB): GCVE-100-341736

Entryinfo

Created: 01/18/2026 08:48
Updated: 03/19/2026 18:26
Changes: 01/18/2026 08:48 (50), 01/25/2026 00:12 (2), 01/27/2026 09:25 (12), 03/19/2026 18:26 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.