Name: CVE-2021-43313: Improper Restriction of Operations within the Bounds of a Memory Buffer
Creator: Rapid7
Published: 2023-03-24T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-43313, CWE-119, CWE-787, CVSS 7.5, EPSS 0.00185

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf32::invert_pt_dynamic at p_lx_elf.cpp:1688.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Debian	—	No solution existsUpgrade upx-ucl	May 15, 2025	Mar 24, 2023
Suse	—	Upgrade upx	Aug 9, 2024	Mar 24, 2023

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CVSS Details

Covered by Rapid7

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