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Improper Check for Unusual or Exceptional Conditions Affecting linux-4.9 package, versions <4.9.144-3.1~deb8u1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-DEBIAN8-LINUX49-340587
  • published28 Oct 2018
  • disclosed26 Oct 2018
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Introduced: 26 Oct 2018

CVE-2018-18690  (opens in a new tab)
CWE-754  (opens in a new tab)

How to fix?

Upgrade Debian:8 linux-4.9 to version 4.9.144-3.1~deb8u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-4.9 package and not the linux-4.9 package as distributed by Debian. See How to fix? for Debian:8 relevant fixed versions and status.

In the Linux kernel before 4.17, a local attacker able to set attributes on an xfs filesystem could make this filesystem non-operational until the next mount by triggering an unchecked error condition during an xfs attribute change, because xfs_attr_shortform_addname in fs/xfs/libxfs/xfs_attr.c mishandles ATTR_REPLACE operations with conversion of an attr from short to long form.

References