medium
6.8
CWE
119
Advisory Published
CVE Published
Updated

CVE-2012-4527: Buffer Overflow

First published: Thu Oct 18 2012(Updated: )

Created <span class=""><a href="attachment.cgi?id=629285&amp;action=diff" name="attach_629285" title="patch to fix the buffer overflow">attachment 629285</a> <a href="attachment.cgi?id=629285&amp;action=edit" title="patch to fix the buffer overflow">[details]</a></span> patch to fix the buffer overflow Description of problem: A buffer overflow in mcrypt version 2.6.8 and earlier due to long filenames. If a user were tricked into attempting to encrypt/decrypt specially crafted long filename(s), this flaw would cause a stack-based buffer overflow that could potentially lead to arbitrary code execution. Note that this is caught by FORTIFY_SOURCE, which renders this to being a crash-only bug on Fedora. There are currently no upstream patches for this flaw. Version-Release number of selected component (if applicable): mcrypt-2.6.8-9.el6 (possibly others too). How reproducible: Run mcrypt with ~128 byte long file names.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
Libgcrypt<=2.6.8
Libgcrypt=2.6.4
Libgcrypt=2.6.5
Libgcrypt=2.6.6
Libgcrypt=2.6.7

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-4527?

    CVE-2012-4527 is categorized as a high severity vulnerability due to the potential for buffer overflow exploits.

  • How do I fix CVE-2012-4527?

    To fix CVE-2012-4527, update Mcrypt to a version higher than 2.6.8 or apply the relevant patches provided.

  • What software is affected by CVE-2012-4527?

    CVE-2012-4527 affects versions of Mcrypt up to and including 2.6.8, as well as specific versions 2.6.4, 2.6.5, 2.6.6, and 2.6.7.

  • Can CVE-2012-4527 lead to data breaches?

    Yes, if exploited, CVE-2012-4527 can potentially lead to data breaches through unauthorized access or data manipulation.

  • Is CVE-2012-4527 a widely known vulnerability?

    Yes, CVE-2012-4527 is a known vulnerability within the Mcrypt library and has been discussed in various security advisories.

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