7.8
CWE
125 119
Advisory Published
Updated

CVE-2020-27799: Buffer Overflow

First published: Thu Aug 25 2022(Updated: )

A heap-based buffer over-read was discovered in the acc_ua_get_be32 function in miniacc.h in UPX 4.0.0 via a crafted Mach-O file.

Credit: secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
UPX=4.0.0

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Frequently Asked Questions

  • What is CVE-2020-27799?

    CVE-2020-27799 is a heap-based buffer over-read vulnerability in UPX version 4.0.0.

  • How does the CVE-2020-27799 vulnerability occur?

    CVE-2020-27799 occurs due to a heap-based buffer over-read in the acc_ua_get_be32 function in miniacc.h in UPX.

  • What is the severity of CVE-2020-27799?

    CVE-2020-27799 has a severity of 7.8 (high).

  • What software versions are affected by CVE-2020-27799?

    UPX version 4.0.0 is affected by CVE-2020-27799.

  • How can I fix CVE-2020-27799?

    There is currently no known fix or patch for CVE-2020-27799. It is recommended to update to the latest version of UPX when a patch becomes available.

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