Arbitrary Command Injection Affecting linux-4.19 package, versions <4.19.194-1~deb9u1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-DEBIAN9-LINUX419-1312517
  • published9 Apr 2021
  • disclosed8 Apr 2021

Introduced: 8 Apr 2021

CVE-2021-29154  (opens in a new tab)
CWE-77  (opens in a new tab)

How to fix?

Upgrade Debian:9 linux-4.19 to version 4.19.194-1~deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.19 package and not the linux-4.19 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

CVSS Base Scores

version 3.1