{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42250","assignerOrgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","state":"PUBLISHED","assignerShortName":"CERT-PL","dateReserved":"2026-04-25T11:31:56.229Z","datePublished":"2026-05-28T13:15:19.660Z","dateUpdated":"2026-06-05T07:47:33.397Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"bzip2","repo":"https://gitlab.com/federicomenaquintero/bzip2","vendor":"bzip2","versions":[{"lessThanOrEqual":"1.0.8","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"35d122a3df8b0cc4082a4d89fdc6ee99f375fe67","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Michał Majchrowicz (AFINE Team)"},{"lang":"en","type":"finder","value":"Marcin Wyczechowski (AFINE Team)"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service).<br><br>This issue was fixed in bzip2 patch&nbsp;35d122a3df8b0cc4082a4d89fdc6ee99f375fe67"}],"value":"bzip2 contains an off‑by‑one error in the bzip2recover utility. When processing a specially crafted file, the application performs an out‑of‑bounds write to a global buffer, resulting in memory corruption and a crash (denial of service).\n\nThis issue was fixed in bzip2 patch 35d122a3df8b0cc4082a4d89fdc6ee99f375fe67"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":4.8,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","description":"CWE-787 Out-of-bounds Write","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"4bb8329e-dd38-46c1-aafb-9bf32bcb93c6","shortName":"CERT-PL","dateUpdated":"2026-06-05T07:47:33.397Z"},"references":[{"tags":["third-party-advisory"],"url":"https://cert.pl/en/posts/2026/05/CVE-2026-42250/"},{"tags":["product"],"url":"https://sourceware.org/bzip2/"},{"tags":["vendor-advisory"],"url":"https://inbox.sourceware.org/bzip2-devel/20260528145407.293768-1-mark@klomp.org/"},{"tags":["patch"],"url":"https://sourceware.org/cgit/bzip2/commit/?id=35d122a3df8b0cc4082a4d89fdc6ee99f375fe67"}],"source":{"discovery":"EXTERNAL"},"tags":["x_open-source"],"title":"Off-by-One Leading to Out-of-Bounds Write in bzip2","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-28T14:22:49.264231Z","id":"CVE-2026-42250","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-28T14:23:00.571Z"}}]}}