PT-2022-8871 · Upx+2 · Upx+2

Giantbranch · Published 2020-10-02 · Updated 2022-08-27 · CVE-2020-27797

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions UPX version 4.0.0

Description An invalid memory address reference was discovered in the elf lookup function in p lx elf.cpp via a crafted Mach-O file.

Recommendations For UPX version 4.0.0, consider updating to a newer version that contains a fix for this issue, as no specific workaround is provided for this version. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Buffer Overflow

Weakness Enumeration

CWE-763

CWE-119

Related Identifiers

ALT-PU-2020-2930

CVE-2020-27797

Affected Products

Alt Linux

Debian

Upx

References · 10

• 🔥 https://github.com/upx/upx/issues/390 · Exploit
• https://cve.org/CVERecord?id=CVE-2020-27797 · Security Note
• https://ubuntu.com/security/CVE-2020-27797 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-27797 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-27797 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27797 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-27797 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-27797 · Vendor Advisory
• https://github.com/upx/upx/commit/7d093174597483053e95f07d9f4614024c09890e · Note
• https://t.me/cibsecurity/48812 · Telegram Post