Resource Exhaustion Affecting kernel-syms package, versions <5.3.18-24.9.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.05% (16th percentile)

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  • Snyk IDSNYK-SLES152-KERNELSYMS-2705699
  • published14 Apr 2022
  • disclosed3 Aug 2020

Introduced: 3 Aug 2020

CVE-2019-20812  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 kernel-syms to version 5.3.18-24.9.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

An issue was discovered in the Linux kernel before 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.

CVSS Scores

version 3.1