EUVD-2025-20928CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
Lifecycle Timeline
4DescriptionNVD
A flaw was found in GnuTLS. A double-free vulnerability exists in GnuTLS due to incorrect ownership handling in the export logic of Subject Alternative Name (SAN) entries containing an otherName. If the type-id OID is invalid or malformed, GnuTLS will call asn1_delete_structure() on an ASN.1 node it does not own, leading to a double-free condition when the parent function or caller later attempts to free the same structure.
This vulnerability can be triggered using only public GnuTLS APIs and may result in denial of service or memory corruption, depending on allocator behavior.
AnalysisAI
A flaw was found in GnuTLS.
Technical ContextAI
A denial of service vulnerability allows an attacker to disrupt the normal functioning of a system, making it unavailable to legitimate users. This vulnerability is classified as Double Free (CWE-415).
RemediationAI
Implement rate limiting and input validation. Use timeout mechanisms for resource-intensive operations. Deploy DDoS protection where applicable.
Vendor StatusVendor
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| upstream | released | 3.8.9-3 |
| jammy | released | 3.7.3-4ubuntu1.7 |
| noble | released | 3.8.3-1.1ubuntu3.4 |
| plucky | released | 3.8.9-2ubuntu3.1 |
| oracular | ignored | end of life, was needs-triage |
| xenial | not-affected | code not present |
| bionic | released | 3.5.18-1ubuntu1.6+esm2 |
| focal | released | 3.6.13-2ubuntu1.12+esm1 |
| questing | released | 3.8.9-3ubuntu1 |
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye | fixed | 3.7.1-5+deb11u8 | - |
| bullseye (security) | fixed | 3.7.1-5+deb11u9 | - |
| bookworm | fixed | 3.7.9-2+deb12u5 | - |
| bookworm (security) | fixed | 3.7.9-2+deb12u6 | - |
| trixie (security), trixie | fixed | 3.8.9-3+deb13u2 | - |
| forky, sid | fixed | 3.8.12-3 | - |
| (unstable) | fixed | 3.8.9-3 | - |
Share
External POC / Exploit Code
Leaving vuln.today