Vulnerability · Published Aug 18, 2022 · Assigned by redhat
CVE-2020-27790
Medium 5.5
In plain English
A medium-severity security flaw in upx. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.3%top 73.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | upx-ucl | 3.96-1 | DEBIAN-CVE-2020-27790 |
| Debian:14 | upx-ucl | 3.96-1 | DEBIAN-CVE-2020-27790 |
Affected products (as reported)
Weakness: CWE-369
References
- https://github.com/upx/upx/issues/331 x_refsource_MISC
- https://github.com/upx/upx/commit/eb90eab6325d009004ffb155e3e33f22d4d3ca26 x_refsource_MISC