7.5

CVE-2023-32636: glib Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-32636
Published 14-09-2023Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2023-32636 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in glib. EPSS estimates a 0.79% chance of exploitation in the next 30 days, higher than 55.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.79%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 3
RHSA-2024:2528SUSE-SU-2023:3535-1USN-6165-1USN-6165-2

Timeline

  1. 14-09-2023
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in glib, where the gvariant deserialization code is vulnerable to a denial of service introduced by additional input validation added to resolve CVE-2023-29499. The offset table validation may be very slow. This bug does not affect any released version of glib but does affect glib distributors who followed the guidance of glib developers to backport the initial fix for CVE-2023-29499.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.79%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

+0.01 pp

From 0.78% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.79%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Glib1 product
Gnome1 product
Ubuntu1 product
  • glib2.0< 2.40.2-0ubuntu1.1+esm6 | < 2.48.2-0ubuntu4.8+esm3 | < 2.56.4-0ubuntu0.18.04.9+esm3 | < 2.64.6-1~ubuntu20.04.6 | < 2.72.4-0ubuntu2.2

3 vendors · 3 products

References

10 links