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Out-of-Bounds The advisory has been revoked - it doesn't affect any version of package upx-ucl  (opens in a new tab)

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EPSS
0.36% (29th percentile)

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  • Snyk IDSNYK-UBUNTU1604-UPXUCL-3229538
  • published1 Jun 2025
  • disclosed12 Jan 2023
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Introduced: 12 Jan 2023

CVE-2023-23457  (opens in a new tab)
CWE-119  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:16.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream upx-ucl package and not the upx-ucl package as distributed by Ubuntu.

A Segmentation fault was found in UPX in PackLinuxElf64::invert_pt_dynamic() in p_lx_elf.cpp. An attacker with a crafted input file allows invalid memory address access that could lead to a denial of service.