CVE-2020-26572

The TCOS smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in tcos_decipher.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 15%
VendorProductVersion
opensc_projectopensc
𝑥
≤ 0.20.0
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
opensc
bullseye
0.21.0-1
fixed
bookworm
0.23.0-0.3+deb12u1
fixed
sid
0.25.1-2
fixed
trixie
0.25.1-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
opensc
noble
not-affected
mantic
not-affected
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
ignored
groovy
ignored
focal
Fixed 0.20.0-3ubuntu0.1~esm1
released
bionic
Fixed 0.17.0-3ubuntu0.1~esm1
released
xenial
Fixed 0.15.0-1ubuntu1+esm1
released
trusty
dne
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2020/11/24/4
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967
https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817
https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/
http://www.openwall.com/lists/oss-security/2020/11/24/4
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=22967
https://github.com/OpenSC/OpenSC/commit/9d294de90d1cc66956389856e60b6944b27b4817
https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/