CVE-2025-32464: Buffer Overflow
HAProxy 2.2 through 3.1.6, in certain uncommon configurations, has a sampleconvregsub heap-based buffer overflow because of mishandling of the replacement of multiple short patterns with a longer one.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/haproxyto a version that resolves this vulnerability.Fixed in 2.2.9-2+deb11u7Fixed in 3.0.10-1
Event History
Frequently Asked Questions
What is the severity of CVE-2025-32464?
CVE-2025-32464 is classified as a high severity vulnerability due to its potential for a heap-based buffer overflow.
How do I fix CVE-2025-32464?
To mitigate CVE-2025-32464, upgrade HAProxy to version 3.1.7 or later where the vulnerability has been addressed.
What versions of HAProxy are affected by CVE-2025-32464?
CVE-2025-32464 affects HAProxy versions 2.2 through 3.1.6.
What is the impact of CVE-2025-32464 on HAProxy?
The impact of CVE-2025-32464 includes a potential crash or arbitrary code execution due to a buffer overflow.
In which configurations does CVE-2025-32464 occur?
CVE-2025-32464 may be triggered in certain uncommon configurations involving multiple short patterns replaced by a longer one.