Buffer Overflow Detected in libxml2 Impacting Red Hat Programs
CVE-2025-6021
7.5HIGH
Key Information:
What is CVE-2025-6021?
A vulnerability exists in the xmlBuildQName function of libxml2, where improper calculations of buffer sizes due to integer overflows can result in a stack-based buffer overflow. Attackers can exploit this flaw by supplying specially crafted input, ultimately leading to memory corruption or causing a denial of service in applications using vulnerable versions of libxml2.
Affected Version(s)
Red Hat Enterprise Linux 10 0:2.12.5-7.el10_0
Red Hat Enterprise Linux 8 0:2.9.7-21.el8_10.1
Red Hat Enterprise Linux 8 0:2.9.7-21.el8_10.1
References
CVSS V3.1
Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged
Timeline
Vulnerability published
Vulnerability Reserved
Credit
Red Hat would like to thank Ahmed Lekssays for reporting this issue.