{"schemaVersion":3,"id":"CVE-2025-8836","aliases":["UBUNTU-CVE-2025-8836"],"status":"published","duplicateOf":null,"title":null,"description":"A vulnerability was determined in JasPer up to 4.2.5. Affected by this issue is the function jpc_floorlog2 of the file src/libjasper/jpc/jpc_enc.c of the component JPEG2000 Encoder. The manipulation leads to reachable assertion. The attack needs to be approached locally. The exploit has been disclosed to the public and may be used. The patch is identified as 79185d32d7a444abae441935b20ae4676b3513d4. It is recommended to apply a patch to fix this issue.","dates":{"published":"2025-08-11T07:32:08.430Z","modified":"2025-08-12T13:44:11.473Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":4.8,"severity":"medium","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":4.8,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":3.3,"severity":"low","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"3.0","versionLabel":"v3.0","source":"CVE.org","score":3.3,"severity":"low","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"CVE.org","score":1.7,"severity":"low","vector":"AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":4.8,"severity":"medium","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Ubuntu","score":3.3,"severity":"low","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","exploitability":4.6,"impact":2.3,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":1.9,"severity":"low","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":3.3,"severity":"low","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","exploitability":null,"impact":null,"computed":false},{"version":"2.0","versionLabel":"v2.0","source":"NVD","score":1.7,"severity":"low","vector":"AV:L/AC:L/Au:S/C:N/I:N/A:P","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00214,"percentile":0.11158,"severity":"low","asOf":"2026-10-21T00:00:00.000Z","change":{"pp":0.00899999999999998,"baselineDate":"2026-09-21T00:00:00.000Z","baselineScore":0.00205},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00206,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00206,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00214,"percentile":0.11158}],"last30":[{"date":"2026-09-21T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00205,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00206,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00206,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00214,"percentile":null},{"date":"2026-10-21T00:00:00.000Z","score":0.00214,"percentile":0.11158}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[{"id":"REF_CB2191A6868DA2EB","name":"Exploit Reference (drive.google.com)","source":"reference","url":"https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_link","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"GITHUB_JASPER-SOFTWARE_JASPER","name":"Jasper","source":"github","url":"https://github.com/jasper-software/jasper/issues/252","maturity":"poc","reliabilityScore":0.3,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null},{"id":"REF_2E8F79166AB25451","name":"Exploit Reference (vuldb.com)","source":"reference","url":"https://vuldb.com/?submit.622409","maturity":"unknown","reliabilityScore":0.2,"verified":false,"type":null,"platforms":[],"requiresAuth":null,"exploitdb":null,"metasploit":null}],"exploitCount":3,"weaknesses":[{"id":"CWE-617","name":"Reachable Assertion","description":"The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/617.html"}],"affected":[{"vendor":"ubuntu","product":"jasper","name":"jasper","label":"jasper","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/jasper","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"jasper_project","product":"jasper","name":"jasper","label":"jasper","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≤ 4.2.5","noFixRecorded":false,"fixedIn":null}],"versionsText":"≤ 4.2.5","eol":null,"hubHref":"/vendor/jasper_project/jasper"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://vuldb.com/?id.319370","label":"vuldb.com?id.319370","hostname":"vuldb.com","tags":["VDB Entry","Technical Description","REPORT","Third Party Advisory"]},{"url":"https://vuldb.com/?ctiid.319370","label":"vuldb.com?ctiid.319370","hostname":"vuldb.com","tags":["Signature","Permissions Required","REPORT","VDB Entry"]},{"url":"https://vuldb.com/?submit.622409","label":"vuldb.com?submit.622409","hostname":"vuldb.com","tags":["Third Party Advisory","REPORT","Exploit","VDB Entry"]},{"url":"https://github.com/jasper-software/jasper/issues/401","label":"github.com/jasper-software/jasper/issues/401","hostname":"github.com","tags":["Issue Tracking","REPORT","Exploit","Vendor Advisory"]},{"url":"https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_link","label":"drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_link","hostname":"drive.google.com","tags":["Exploit","REPORT"]},{"url":"https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4","label":"github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4","hostname":"github.com","tags":["Patch","REPORT"]},{"url":"https://ubuntu.com/security/CVE-2025-8836","label":"ubuntu.com/security/CVE-2025-8836","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-8836","label":"www.cve.org/CVERecord?id=CVE-2025-8836","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8836","label":"nvd.nist.gov/vuln/detail/CVE-2025-8836","hostname":"nvd.nist.gov","tags":["Oval","Advisory"]}],"lineage":{"upstream":[],"downstream":["OPENSUSE-SU-2025:15447-1","OPENSUSE-SU-2026:20138-1","SUSE-SU-2025:03219-1","SUSE-SU-2025:03367-1","SUSE-SU-2025:3947-1","SUSE-SU-2026:20200-1"],"duplicates":[],"related":["OPENSUSE-SU-2025:15447-1","OPENSUSE-SU-2026:20138-1","SUSE-SU-2025:03219-1","SUSE-SU-2025:03367-1","SUSE-SU-2025:3947-1","SUSE-SU-2026:20200-1"]},"timeline":[{"kind":"published","date":"2025-08-11T07:32:08.430Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2025-08-12T13:44:11.473Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":29,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T23:14:57.321Z","stale":false,"partial":false}}