{"id":"CVE-2019-18183","aliases":["ALPINE-CVE-2019-18183","EUVD-2019-7988","GHSA-66r9-jcx4-7f35"],"status":"published","title":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the...","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.03672,"percentile":0.89741,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-78"],"published":"2020-02-24T14:36:18Z","modified":"2026-11-03T06:31:55Z","fixes":[{"ecosystem":"Alpine:v3.11","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.12","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.13","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.14","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.15","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.16","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.17","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.18","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.19","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.20","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.21","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.22","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"pacman","fixed_in":["5.2.0-r0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.11","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.12","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.13","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.14","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.15","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.16","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.17","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.18","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.19","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.20","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.21","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.22","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"pacman","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.0-r0"}]}]}],"products":[{"vendor":"fedoraproject","product":"fedora"},{"vendor":"pacman_project","product":"pacman"}],"references":[{"url":"https://git.archlinux.org/pacman.git/tree/lib/libalpm/sync.c?h=v5.1.3#n767","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://git.archlinux.org/pacman.git/commit/?id=c0e9be7973be6c81b22fde91516fb8991e7bb07b","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory"]},{"url":"https://github.com/alpinelinux/alpine-secdb/blob/master/v3.11/community.yaml","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-18183"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/"},{"url":"https://github.com/advisories/GHSA-66r9-jcx4-7f35"},{"url":"https://security.alpinelinux.org/vuln/CVE-2019-18183","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2019-18183","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","status":"published","published":"2020-02-24T14:36:18Z","modified":"2024-08-05T01:47:13.529Z","updated_at":"2026-11-02T14:32:23.803059Z"}],"euvd":[{"id":"EUVD-2019-7988","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","status":"published","published":"2020-02-24T14:36:18Z","modified":"2024-08-05T01:47:13Z","updated_at":"2026-11-03T02:40:29.306082Z"}],"ghsa":[{"id":"GHSA-66r9-jcx4-7f35","title":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the...","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","status":"published","published":"2022-05-24T17:09:32Z","modified":"2023-01-29T05:01:37Z","cwes":["CWE-78"],"updated_at":"2026-11-02T14:44:52.185162Z"}],"nvd":[{"id":"CVE-2019-18183","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","status":"published","published":"2020-02-24T15:15:11.457Z","modified":"2026-06-17T02:24:25.65Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-78"],"updated_at":"2026-11-02T14:05:43.875329Z"}],"osv":[{"id":"ALPINE-CVE-2019-18183","description":"pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.","status":"published","published":"2020-02-24T15:15:11.457Z","modified":"2026-11-03T06:31:55.069159402Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T07:18:15.355745Z"}]}}