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

Severity

 Recommended
0.0
critical
0
10

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Threat Intelligence

EPSS
0.63% (80th percentile)

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  • Snyk IDSNYK-DEBIAN11-GLIBC-529893
  • published18 May 2018
  • disclosed18 May 2018
Report a new vulnerability Found a mistake?

Introduced: 18 May 2018

CVE-2017-18269  (opens in a new tab)
CWE-119  (opens 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.