Double Free in GNU Gnutls
CVE-2022-2509
A vulnerability found in gnutls. This security flaw happens because of a double free error occurs during verification of pkcs7 signatures in gnutls_pkcs7_verify function.
Vulnerability class: Double Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.020 (79.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 79.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.020 · change: +0.001
Affected products
- GNU Gnutls
- Debian Linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 35
- Red Hat Enterprise Linux — versions 8.0, 9.0
- Gnutls — versions gnutls 3.7.7(Fixed)
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2022-2509 (Third Party Advisory)
- lists.gnupg.org/pipermail/gnutls-help/2022-July/004746.html (Mailing List, Release Notes, Vendor Advisory)
- www.debian.org/security/2022/dsa-5203 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/08/msg00002.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2022-2509?
- CVE-2022-2509 is a high-severity vulnerability in GNU Gnutls, classified under Double Free. CVSS score: 7.5/10. Published 2022-08-01.
- How severe is CVE-2022-2509?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-2509 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.