Out-of-bounds Write Affecting glibc package, versions <2.26-4


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-GLIBC-356855
  • published10 Jan 2018
  • disclosed10 Jan 2018

Introduced: 10 Jan 2018

CVE-2018-1000001  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Debian:unstable glibc to version 2.26-4 or higher.

NVD Description

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

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.