CVE-2021-43317 describes a heap-based buffer overflow vulnerability in UPX, specifically within the PackLinuxElf64::elf_lookup() function, where a generic pointer accesses an invalid memory address. This vulnerability carries a CVSS v3.1 score of 7.5 (High), indicating it can be exploited remotely without authentication and lead to a denial of service. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.0CPE matchmatch criteria | cpe:2.3:a:upx:upx:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.