Improper Input Validation Affecting glibc package, versions <2.28-1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.55% (79th percentile)

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  • Snyk ID SNYK-DEBIAN11-GLIBC-517592
  • published 2 Dec 2018
  • disclosed 4 Dec 2018

How to fix?

Upgrade Debian:11 glibc to version 2.28-1 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.

In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not closed. This is related to the if_nametoindex() function.