{"id":"CVE-2023-35709","state":"PUBLISHED","title":"Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability","description":"Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.\n. Was ZDI-CAN-19928.","publishedAt":"2024-05-03T01:57:32.608Z","updatedAt":"2024-09-18T18:28:47.176Z","severity":{"score":7.8,"label":"High","version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"zdi"},"assigner":"zdi","products":["Ashlar-Vellum Cobalt"],"affected":[{"vendor":"Ashlar-Vellum","product":"Cobalt","defaultStatus":"unknown","versions":[{"version":"Ashlar-Vellum Cobalt 12 beta build 1204.57","status":"affected"}]}],"references":["https://www.zerodayinitiative.com/advisories/ZDI-23-872/"],"weaknesses":["CWE-122"],"ingestedAt":"2026-10-29T20:06:00.499Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/35xxx/CVE-2023-35709.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-35709","state":"PUBLISHED","datePublished":"2024-05-03T01:57:32.608Z","dateUpdated":"2024-09-18T18:28:47.176Z","assignerShortName":"zdi","assignerOrgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateReserved":"2023-06-15T20:23:02.751Z"},"containers":{"cna":{"title":"Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability","descriptions":[{"lang":"en","value":"Ashlar-Vellum Cobalt Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of CO files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.\n. Was ZDI-CAN-19928."}],"affected":[{"vendor":"Ashlar-Vellum","product":"Cobalt","defaultStatus":"unknown","versions":[{"version":"Ashlar-Vellum Cobalt 12 beta build 1204.57","status":"affected"}]}],"references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-872/","name":"ZDI-23-872","tags":["x_research-advisory"]}],"metrics":[{"format":"CVSS","cvssV3_0":{"version":"3.0","vectorString":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-122","lang":"en","description":"CWE-122: Heap-based Buffer Overflow","type":"CWE"}]}],"providerMetadata":{"shortName":"zdi","orgId":"99f1926a-a320-47d8-bbb5-42feb611262e","dateUpdated":"2024-09-18T18:28:47.176Z"},"dateAssigned":"2023-06-15T20:31:13.839Z","datePublic":"2023-06-15T22:56:58.652Z","source":{"lang":"en","value":"Anonymous"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"ashlar_vellum","product":"cobalt","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"*","versionType":"custom"}],"cpes":["cpe:2.3:a:ashlar_vellum:cobalt:*:*:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-05-22T17:48:59.224835Z","id":"CVE-2023-35709","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-07-23T17:18:42.080Z"}},{"title":"CVE Program Container","references":[{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-872/","name":"ZDI-23-872","tags":["x_research-advisory","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-02T16:30:44.626Z"}}]}}}