Use of Insufficiently Random Values Affecting perf package, versions <0:4.18.0-240.15.1.el8_3
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Test your applications- Snyk ID SNYK-RHEL8-PERF-3958800
- published 26 Jul 2021
- disclosed 13 Nov 2020
Introduced: 13 Nov 2020
CVE-2020-25705 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-240.15.1.el8_3 or higher.
This issue was patched in RHSA-2021:0558.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Version