CVE-2025-32990: Gnutls: vulnerability in gnutls certtool template parsing
A heap-buffer-overflow (off-by-one) flaw was found in the GnuTLS software in the template parsing logic within the certtool utility. When it reads certain settings from a template file, it allows an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and a denial-of-service (DoS) that could potentially crash the system.
Other sources
A heap-buffer-overflow (off-by-one) vulnerability exists in the template parsing logic within the certtool utility of GnuTLS. The vulnerability specifically occurs when parsing certain multiline configuration options from a user-supplied template file, allowing an attacker to cause an out-of-bounds (OOB) NULL pointer write, resulting in memory corruption and potential denial-of-service (DoS).
— Red Hat
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-32990?
CVE-2025-32990 has been categorized as a high-severity vulnerability due to its potential for exploitation.
How do I fix CVE-2025-32990?
To resolve CVE-2025-32990, update the GnuTLS certtool software to the latest patched version.
What causes CVE-2025-32990?
CVE-2025-32990 is caused by a heap-buffer-overflow (off-by-one) flaw in the template parsing logic of the GnuTLS certtool utility.
Can CVE-2025-32990 be exploited remotely?
Yes, CVE-2025-32990 can potentially be exploited by an attacker remotely through crafted template files.
Which versions of GnuTLS certtool are affected by CVE-2025-32990?
CVE-2025-32990 affects all versions of the GnuTLS certtool software prior to the security patch release.