{"id":"CVE-2026-35369","aliases":["GHSA-p6rv-2qpm-fwvg"],"url":"https://o3.security/vulnerability/CVE-2026-35369","summary":"uutils coreutils kill System-wide Process Termination and Denial of Service via Argument Misinterpretation","details":"`kill -1` is incorrectly parsed as a positional `pid = -1`; combined with the default SIGTERM this calls `kill(-1, SIGTERM)`, signaling nearly every process the caller can see. GNU `kill` recognizes `-1`/`-9` as signals and reports \"not enough arguments\".\n\n```\n$ kill -1        # uutils: kill(-1, SIGTERM) -> mass termination / crash\n$ kill -1        # GNU: kill: not enough arguments\n```\n\n**Impact:** a user running `kill -1` mass-terminates processes, potentially crashing the system. Recommendation: parse `-N` as a signal number, and error with \"not enough arguments\" when no PID is given.\n\n**Remediation:** Acknowledged by Canonical; fixed in commit cae94028.\n\n---\n_Reported by Zellic in the *uutils coreutils Program Security Assessment* (prepared for Canonical, Jan 20 2026), audited commit `3a07ffc5a9bd4c283e75afa548ba1f1957bad242`. Finding 3.70. Credit: Zellic._","published":"2026-04-22T16:08:51.268Z","modified":"2026-08-12T03:51:48.636495622Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00128,"percentile":0.02776,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"uu_kill","fixedVersion":"0.6.0"}],"fix":{"url":"https://github.com/uutils/coreutils/pull/9700","label":"uutils/coreutils#9700"},"references":[{"type":"WEB","url":"https://github.com/uutils"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35369.json"},{"type":"ADVISORY","url":"https://github.com/uutils/coreutils/releases/tag/0.6.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35369"},{"type":"FIX","url":"https://github.com/uutils/coreutils/pull/9700"},{"type":"PACKAGE","url":"https://github.com/uutils/coreutils"},{"type":"WEB","url":"https://github.com/uutils/coreutils/security/advisories/GHSA-p6rv-2qpm-fwvg"},{"type":"WEB","url":"https://github.com/uutils/coreutils/commit/2d3aebce6712841bc08b9b94e9078be50a25fc10"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:48.636495622Z"}}