2.5
CWE
415
Advisory Published
Updated

CVE-2021-27645: Double Free

First published: Wed Feb 24 2021(Updated: )

Last updated 24 July 2024

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
GNU glibc>=2.29<=2.33
Fedoraproject Fedora=33
Fedoraproject Fedora=34
Debian Debian Linux=10.0
debian/glibc
2.31-13+deb11u11
2.31-13+deb11u10
2.36-9+deb12u9
2.36-9+deb12u7
2.40-4

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Frequently Asked Questions

  • What is the vulnerability ID for this issue?

    The vulnerability ID for this issue is CVE-2021-27645.

  • What is the severity level of CVE-2021-27645?

    The severity level of CVE-2021-27645 is low with a score of 2.5.

  • What software is affected by CVE-2021-27645?

    The GNU C Library (glibc) versions 2.29 through 2.33, Fedora versions 33 and 34, and Debian Linux version 10.0 are affected by CVE-2021-27645.

  • What is the impact of CVE-2021-27645?

    CVE-2021-27645 may lead to a crash in the nameserver caching daemon (nscd), potentially resulting in degraded service or Denial of Service on the local system.

  • Are there any references available for CVE-2021-27645?

    Yes, you can find references for CVE-2021-27645 [here](https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html), [here](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LZNT6KTMCCWPWXEOGSHD3YLYZKUGMH5/), and [here](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7TS26LIZSOBLGJEZMJX4PXT5BQDE2WS/).

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