CWE
476
Advisory Published
Updated

CVE-2017-14121: Null Pointer Dereference

First published: Sun Sep 03 2017(Updated: )

The DecodeNumber function in unrarlib.c in unrar 0.0.1 (aka unrar-free or unrar-gpl) suffers from a NULL pointer dereference flaw triggered by a crafted RAR archive. NOTE: this may be the same as one of the several test cases in the CVE-2017-11189 references.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
UnRAR=0.0.1
Debian=9.0

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Frequently Asked Questions

  • What is the severity of CVE-2017-14121?

    CVE-2017-14121 has a low severity rating due to its nature as a NULL pointer dereference flaw.

  • How do I fix CVE-2017-14121?

    To fix CVE-2017-14121, update to a patched version of unrar beyond 0.0.1.

  • Which software is affected by CVE-2017-14121?

    CVE-2017-14121 affects unrar version 0.0.1 and Debian GNU/Linux 9.0.

  • What impact does CVE-2017-14121 have on systems?

    CVE-2017-14121 can lead to application crashes when processing specially crafted RAR archives.

  • Is CVE-2017-14121 exploitable in the wild?

    There have been no confirmed reports of CVE-2017-14121 being actively exploited in the wild.

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