CVE-2019-18183
CRITICALpacman < 5.2 - OS Command Injection via Crafted Delta File in apply_deltas()
Title source: llmDescription
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.
References (6)
Core 6
Core References
Exploit, Third Party Advisory x_refsource_misc
https://git.archlinux.org/pacman.git/tree/lib/libalpm/sync.c?h=v5.1.3#n767
Patch, Third Party Advisory x_refsource_misc
https://git.archlinux.org/pacman.git/commit/?id=c0e9be7973be6c81b22fde91516fb8991e7bb07b
Release Notes, Third Party Advisory x_refsource_misc
https://github.com/alpinelinux/alpine-secdb/blob/master/v3.11/community.yaml
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/
Scores
CVSS v3
9.8
EPSS
0.0367
EPSS Percentile
88.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-78
Status
published
Products (4)
fedoraproject/fedora
30
fedoraproject/fedora
31
fedoraproject/fedora
32
pacman_project/pacman
< 5.2
Published
Feb 24, 2020
Tracked Since
Feb 18, 2026