{"id":"CVE-2021-33294","title":"In elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of service (infinite loop) via crafted file.","summary":"In elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of service (infinite loop) via crafted file.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-835"],"vendor":"elfutils_project","product":"elfutils","affected":["elfutils = 0.183"],"published":"2023-07-18","updated":"2026-10-14","sourceUpdated":"2026-10-14T12:17:12.097","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-33294","references":[{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=27501","label":"cve@mitre.org"},{"url":"https://sourceware.org/pipermail/elfutils-devel/2021q1/003607.html","label":"cve@mitre.org"},{"url":"https://sourceware.org/bugzilla/show_bug.cgi?id=27501","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://sourceware.org/pipermail/elfutils-devel/2021q1/003607.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-398330.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00334,"epssPercentile":0.25144,"ingestedAt":"2026-10-14T12:29:10.830Z","exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2024-10-28T17:05:21.199995Z"},"slug":"CVE-2021-33294","body":"## Overview\n\nIn elfutils 0.183, an infinite loop was found in the function handle_symtab in readelf.c .Which allows attackers to cause a denial of service (infinite loop) via crafted file.\n\n## Affected\n\n- `elfutils = 0.183`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":221259,"id":"CVE-2021-33294","ts":1792030948528,"field":"exploit_available","old":"false","new":"true"}]}