PT-2022-8865 · Upx+1 · Upx+1

Cxy20103657 · Published 2020-10-01 · Updated 2023-10-22 · CVE-2020-27790

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 (affected versions not specified)

Description A floating point exception issue was discovered in the PackLinuxElf64::invert pt dynamic() function of the p lx elf.cpp file. An attacker with a crafted input file could trigger this issue, causing a crash that leads to a denial of service. The highest impact is to Availability.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Divide By Zero

Weakness Enumeration

CWE-369

Related Identifiers

ALT-PU-2020-2910

ALT-PU-2020-2930

CVE-2020-27790

ROSA-SA-2023-2260

Affected Products

Alt Linux

Upx

References · 12

• 🔥 https://github.com/upx/upx/issues/331 · Exploit
• https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26 · Patch
• https://ubuntu.com/security/CVE-2020-27790 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-27790 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-27790 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-27790 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-27790 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-27790 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-27790 · Vendor Advisory
• https://t.me/cibsecurity/48370 · Telegram Post
• https://t.me/cvenotify/35051 · Telegram Post
• https://t.me/cvenotify/34901 · Telegram Post