CVE-2020-27790 — Divide By Zero in UPX

CWE-369 — Divide By Zero4 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 85.16%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
UPXDebian Upx-ucl
Timeline
PublishedAug 18
Latest updateAug 19

Description

A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf.cpp file. An attacker with a crafted input file could trigger this issue that could cause a crash leading to a denial of service. The highest impact is to Availability.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶NVDupx/upx< 3.96
▶debiandebian/upx-ucl< upx-ucl 3.96-1 (bullseye)
▶CVEListV5upx/upxFixed in v3.96.

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-vhpq-rmjq-cgrp: A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf↗2022-08-19
▶
OSV
CVE-2020-27790: A floating point exception issue was discovered in UPX in PackLinuxElf64::invert_pt_dynamic() function of p_lx_elf↗2022-08-18
▶

📋Vendor Advisories

1
Debian
CVE-2020-27790: upx-ucl - A floating point exception issue was discovered in UPX in PackLinuxElf64::invert...↗2020
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CVE-2020-27790 — Divide By Zero in UPX | cvebase