Out-of-bounds Write Affecting p11-kit package, versions <0:0.23.22-1.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.28% (70th percentile)

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  • Snyk IDSNYK-RHEL8-P11KIT-4019988
  • published26 Jul 2021
  • disclosed12 Dec 2020

Introduced: 12 Dec 2020

CVE-2020-29363  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:8 p11-kit to version 0:0.23.22-1.el8 or higher.
This issue was patched in RHSA-2021:1609.

NVD Description

Note: Versions mentioned in the description apply only to the upstream p11-kit package and not the p11-kit package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Scores

version 3.1