Vulnerability in Gnu Libtasn1
CVE-2021-46848
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.
EPSS: 0.021 (79.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H.
Affected products
- Gnu Libtasn1
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 35, 36, 37
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, Issue Tracking)
- cve@mitre.org (Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-46848?
- CVE-2021-46848 is a critical-severity vulnerability in Gnu Libtasn1, classified under Off-by-one Error. CVSS score: 9.1/10. Published 2022-10-24.
- How severe is CVE-2021-46848?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2021-46848 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.