What is CVE-2023-32636?

CVE-2023-32636 is a medium-severity vulnerability in Glib, classified under Uncontrolled Resource Consumption. CVSS score: 4.7/10. Published 2023-09-14.

How severe is CVE-2023-32636?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2023-32636 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Glib

CVE-2023-32636

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.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.008 (52.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Glib — versions 2.75.1
Gnome Glib

Weakness classification (CWE)

Public proof-of-concept exploits

References

secalert@redhat.com (Issue Tracking, Vendor Advisory)
secalert@redhat.com (Broken Link)
secalert@redhat.com (Third Party Advisory)

Frequently asked questions

What is CVE-2023-32636?: CVE-2023-32636 is a medium-severity vulnerability in Glib, classified under Uncontrolled Resource Consumption. CVSS score: 4.7/10. Published 2023-09-14.
How severe is CVE-2023-32636?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2023-32636 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.