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Out-of-Bounds Affecting glibc package, versions <2.27-3

Severity

 Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.63% (80th percentile)

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  • Snyk ID SNYK-DEBIAN11-GLIBC-529893
  • published 18 May 2018
  • disclosed 18 May 2018
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Introduced: 18 May 2018

CVE-2017-18269 Open this link in a new tab
CWE-119 Open this link in a new tab

How to fix?

Upgrade Debian:11 glibc to version 2.27-3 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:11 relevant fixed versions and status.

An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.