High severity · published Dec 16, 2020
CVE-2020-29363
An issue was discovered in p11-kit 0.23.6 through 0.23.21
7.5
CVSS
3.5%
EPSS
No
On KEV
Description
An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.5% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Communications Cloud Native Core Policy · Oracle
1.14.0 · source: NVD
DL
Debian Linux · Debian
10.0 · source: NVD
P1
P11-kit · P11-kit Project
0.23.6 before 0.23.22 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-29363
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-29363
Release Notes
https://github.com/p11-glue/p11-kit/releases
Third Party Advisory
https://github.com/p11-glue/p11-kit/security/advisories/GHSA-5j67-fw89-fp6x
Third Party Advisory
https://www.debian.org/security/2021/dsa-4822
Patch
https://www.oracle.com/security-alerts/cpuapr2022.html
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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