Out-of-bounds Write Affecting glibc package, versions <2.23-0ubuntu11.2


medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 2.02% (89th percentile)
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NVD
9.8 critical
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SUSE
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-UBUNTU1604-GLIBC-451230
  • published 18 May 2018
  • disclosed 18 May 2018

How to fix?

Upgrade Ubuntu:16.04 glibc to version 2.23-0ubuntu11.2 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 Ubuntu. See How to fix? for Ubuntu:16.04 relevant fixed versions and status.

stdlib/canonicalize.c in the GNU C Library (aka glibc or libc6) 2.27 and earlier, when processing very long pathname arguments to the realpath function, could encounter an integer overflow on 32-bit architectures, leading to a stack-based buffer overflow and, potentially, arbitrary code execution.