Double Free in Opensc Project
CVE-2021-42778
A heap double free issue was found in Opensc before version 0.22.0 in sc_pkcs15_free_tokeninfo.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.021 (81.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Opensc Project
- Fedoraproject Fedora — versions 33
- Red Hat Enterprise Linux — versions 7.0, 8.0
- Opensc — versions opensc 0.22.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.chromium.org/p/oss-fuzz/issues/detail (Patch, Mailing List, Third Party Advisory, Issue Tracking)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/OpenSC/OpenSC/commit/f015746d (Patch, Third Party Advisory)
- security.gentoo.org/glsa/202209-03 (vendor-advisory, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2021-42778?
- CVE-2021-42778 is a medium-severity vulnerability in Opensc Project, classified under Operation on a Resource after Expiration or Release. CVSS score: 5.3/10. Published 2022-04-18.
- How severe is CVE-2021-42778?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-42778 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.