Vulnerability Details : CVE-2020-26571
The gemsafe GPK smart card software driver in OpenSC before 0.21.0-rc1 has a stack-based buffer overflow in sc_pkcs15emu_gemsafeGPK_init.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2020-26571
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:opensc_project:opensc:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26571
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 7 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26571
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2020-26571
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-26571
-
http://www.openwall.com/lists/oss-security/2020/11/24/4
oss-security - OpenSC 0.21.0 releasedMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXOHFDMNMO6IDECAGUTB3SJGAGXVRT6S/
[SECURITY] Fedora 33 Update: opensc-0.21.0-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/11/msg00027.html
[SECURITY] [DLA 2832-1] opensc security updateMailing List;Third Party Advisory
-
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=20612
20612 - opensc:fuzz_pkcs15_reader: Stack-buffer-overflow in sc_pkcs15emu_gemsafeGPK_init - oss-fuzzThird Party Advisory
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