Release of Invalid Pointer or Reference Affecting linux-5.10 package, versions <5.10.178-3~deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-DEBIAN10-LINUX510-5489456
  • published19 Apr 2023
  • disclosed25 May 2023

Introduced: 19 Apr 2023

CVE-2023-0459  (opens in a new tab)
CWE-763  (opens in a new tab)

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.178-3~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47

CVSS Scores

version 3.1