{"id":"CVE-2018-8098","details":"Integer overflow in the index.c:read_entry() function while decompressing a compressed prefix length in libgit2 before v0.26.2 allows an attacker to cause a denial of service (out-of-bounds read) via a crafted repository index file.","modified":"2026-07-08T12:28:48.384698Z","published":"2018-03-14T00:29:00.593Z","related":["openSUSE-SU-2024:10943-1"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"9.0"},{"last_affected":"9.0"}],"source":"CPE_STRING","vendor_product":"debian:debian_linux"}]},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html"},{"type":"FIX","url":"https://github.com/libgit2/libgit2/commit/3207ddb0103543da8ad2139ec6539f590f9900c1"},{"type":"FIX","url":"https://github.com/libgit2/libgit2/commit/3db1af1f370295ad5355b8f64b865a2a357bcac0"},{"type":"FIX","url":"https://libgit2.github.com/security/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/libgit2/libgit2","events":[{"introduced":"0"},{"fixed":"dd2d5381773ca3f7bc31f56aea6fc067db5ea404"},{"fixed":"3207ddb0103543da8ad2139ec6539f590f9900c1"},{"fixed":"3db1af1f370295ad5355b8f64b865a2a357bcac0"}],"database_specific":{"cpe":"cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.26.2"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v0.26.1","v0.26.0-rc2","v0.26.0","v0.27.0-rc1","v0.27.0-rc2","v0.26.0-rc1","v0.24.0","v0.24.0-rc1","v0.23.0","v0.23.0-rc2","v0.23.0-rc1","v0.22.0","v0.22.0-rc2","v0.22.0-rc1","v0.21.0","v0.18.0","v0.17.0","v0.16.0","v0.15.0","v0.14.0","v0.13.0","v0.12.0","v0.11.0","v0.10.0","v0.8.0","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-8098.json","vanir_signatures_modified":"2026-07-08T12:28:48Z","vanir_signatures":[{"digest":{"line_hashes":["135896982973916903305795107330050348358","184939043377130665668669129652211017347","307748016171779875675699727869171429237","241739025222590407109663724768545593759","23267720098037586023124815692439880216","24661678461091087705214163136838974316","90907465384696908184435450087934824448","277379174238028553344217817776980333730","119481454443235298950043312408905204454","229678914226100167683291621348395190622","255372000690676535671072658154186099275","165531933752734538812548705048040921207"],"threshold":0.9},"id":"CVE-2018-8098-29acfe81","signature_type":"Line","signature_version":"v1","source":"https://github.com/libgit2/libgit2/commit/3207ddb0103543da8ad2139ec6539f590f9900c1","target":{"file":"src/index.c"},"deprecated":false},{"digest":{"length":2411,"function_hash":"109719023837396517359196467765305835058"},"id":"CVE-2018-8098-eb1d4f8c","signature_type":"Function","signature_version":"v1","source":"https://github.com/libgit2/libgit2/commit/3207ddb0103543da8ad2139ec6539f590f9900c1","target":{"function":"read_entry","file":"src/index.c"},"deprecated":false}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}