{"id":"CVE-2025-8836","summary":"JasPer JPEG2000 Encoder jpc_enc.c jpc_floorlog2 assertion","details":"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.","modified":"2026-08-12T15:15:04.535019Z","published":"2025-08-11T07:32:08.430Z","related":["SUSE-SU-2025:03219-1","SUSE-SU-2025:03367-1","SUSE-SU-2025:3947-1","SUSE-SU-2026:20200-1","openSUSE-SU-2025:15447-1","openSUSE-SU-2026:20138-1"],"database_specific":{"cna_assigner":"VulDB","cwe_ids":["CWE-617"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8836.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/8xxx/CVE-2025-8836.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-8836"},{"type":"ADVISORY","url":"https://vuldb.com/?id.319370"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.622409"},{"type":"REPORT","url":"https://github.com/jasper-software/jasper/issues/401"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.319370"},{"type":"FIX","url":"https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4"},{"type":"EVIDENCE","url":"https://drive.google.com/file/d/1pPgndhHh2z0lk99Wt31W-XIW3XWt8FB3/view?usp=drive_link"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jasper-software/jasper","events":[{"introduced":"0"},{"fixed":"79185d32d7a444abae441935b20ae4676b3513d4"}],"database_specific":{"cpe":"cpe:2.3:a:jasper_project:jasper:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"4.2.5"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["4.2.0","4.2.1","4.2.2","4.2.3","4.2.4","4.2.5","version-4.2.6","version-4.2.5","version-4.2.4","version-4.2.3","version-4.2.2","version-4.2.1","version-4.2.0-rc1","version-4.2.0","version-4.1.2","version-4.1.1-rc1","version-4.1.1","version-4.1.0-rc2","version-4.1.0","version-4.1.0-rc1","version-4.0.1-rc1","version-4.0.1","version-4.0.0-rc1","version-4.0.0","manual-version-mdadams-20221103-1902","version-3.0.6","version-3.0.5","version-3.0.4","version-3.0.3","version-3.0.2","version-3.0.1","version-3.0.0","version-3.0.0-rc2","version-3.0.0-rc1","manual-version-mdadams-20220109-2039","version-2.0.33","version-2.0.32","version-2.0.31","version-2.0.29","version-2.0.28","version-2.0.27","version-2.0.26","version-2.0.25","version-2.0.24","version-2.0.23","version-2.0.22-rc1","version-2.0.22","version-2.0.21-rc1","version-2.0.21","version-2.0.20","version-2.0.19","version-2.0.16","version-2.0.15","version-2.0.14","version-2.0.13","version-2.0.12","version-2.0.11","version-2.0.10","version-2.0.9","version-2.0.8","version-2.0.7","version-2.0.6","version-2.0.5","version-2.0.4","version-2.0.3","version-2.0.2","version-2.0.1","version-2.0.0","version-2.0.0-beta.2","version-2.0.0-beta.1","version-1.900.31","version-1.900.30","version-1.900.29","version-1.900.28","version-1.900.27","version-1.900.26","version-1.900.25","version-1.900.24","version-1.900.23","version-1.900.22","version-1.900.21","version-1.900.20","version-1.900.19","mdadams-clang-issue","version-1.900.18","version-1.900.17","version-1.900.16","version-1.900.15","version-1.900.14","version-1.900.13","version-1.900.12","version-1.900.11","version-1.900.10","version-1.900.9","version-1.900.8","version-1.900.7","version-1.900.6","version-1.900.5","version-1.900.4","version-1.900.3","version-1.900.2","version-1.900.1"],"database_specific":{"vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["2808549659230441258591704893260531483","152350413999375798091580633165791648738","89357717307011943669892499019798070010","190462739332148733371919017627262449935"],"threshold":0.9},"id":"CVE-2025-8836-7bab6148","signature_type":"Line","signature_version":"v1","source":"https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4","target":{"file":"src/libjasper/jpc/jpc_t2dec.c"}},{"deprecated":false,"digest":{"line_hashes":["237912852561659326688265534140589776533","254823429433087360657677579430210393627","268898736995184040550984507750799762664","205282901754745453981793837589784781698","41444441923975013381984834143321666911","70855659758594358193525234165504697482","327894046701496686997637612650893001729","109174680587702792380036493072285990714","41345054949662030372973143754714765162","180658253739375116473477615792864182852","79315628157822258406844771310324878286","67586316295195733854351168147717538049","333982810349512912551522552036163560004","334422485913351420634949697777867226372","164139617763152545632729210789287158709"],"threshold":0.9},"id":"CVE-2025-8836-e0a04d38","signature_type":"Line","signature_version":"v1","source":"https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4","target":{"file":"src/libjasper/jpc/jpc_enc.c"}},{"signature_version":"v1","source":"https://github.com/jasper-software/jasper/commit/79185d32d7a444abae441935b20ae4676b3513d4","target":{"file":"src/libjasper/jpc/jpc_enc.c","function":"cp_create"},"deprecated":false,"digest":{"function_hash":"170950207524899007564644692247480375351","length":10255},"id":"CVE-2025-8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