Buffer Access with Incorrect Length Value Affecting python3-perf package, versions <0:4.18.0-305.206.1.el8_4


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.14% (3rd percentile)

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  • Snyk IDSNYK-RHEL8-PYTHON3PERF-19730263
  • published13 Sept 2026
  • disclosed24 Jun 2026

Introduced: 24 Jun 2026

CVE-2026-53016  (opens in a new tab)
CWE-805  (opens in a new tab)

How to fix?

Upgrade RHEL:8 python3-perf to version 0:4.18.0-305.206.1.el8_4 or higher.
This issue was patched in RHSA-2026:65710.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

crypto: ccp - copy IV using skcipher ivsize

AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver.

ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer while RFC3686 skciphers expose an 8-byte IV, so the restore overruns the provided buffer.

Use crypto_skcipher_ivsize() to copy only the algorithm's IV length.

CVSS Base Scores

version 3.1