glib gvariant DoS via slow offset validation after CVE-2023-29499
CVE-2023-32636 Published on September 14, 2023
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 Analysis
CVE-2023-32636 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.
Weakness Type
What is a Resource Exhaustion Vulnerability?
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.
CVE-2023-32636 has been classified to as a Resource Exhaustion vulnerability or weakness.
Products Associated with CVE-2023-32636
Want to know whenever a new CVE is published for GNOME Glib? stack.watch will email you.
Affected Versions
glib Version 2.75.1 is affected by CVE-2023-32636Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.