Medium severity · published Apr 18, 2022
CVE-2021-42779
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid
5.3
CVSS
2.1%
EPSS
No
On KEV
Description
A heap use after free issue was found in Opensc before version 0.22.0 in sc_file_valid.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 81% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
7.0; 8.0 · source: NVD
FE
Fedora · Fedoraproject
33 · source: NVD
OP
Opensc · Opensc Project
before 0.22.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-42779
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-42779
Issue Tracking
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28843
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2016086
Patch
https://github.com/OpenSC/OpenSC/commit/1db88374
lists.debian.org
https://lists.debian.org/debian-lts-announce/2023/06/msg00025.html
Third Party Advisory
https://security.gentoo.org/glsa/202209-03
lists.debian.org
https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html
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