CVE-2019-18182

pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the download_with_xfercommand() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable a non-default XferCommand and retrieve an attacker-controlled crafted database and package.

Score

CVSS 3.1 9.8 Critical

Status

Modified - cve@mitre.org

Published

2020-02-24

Last modified

2024-08-05

Weaknesses

CWE-78

Affected products

• Fedora (Fedoraproject)
• Pacman (Pacman Project)

References

• https://git.archlinux.org/pacman.git/commit/?id=808a4f15ce82d2ed7eeb06de73d0f313620558ee
• https://git.archlinux.org/pacman.git/tree/src/pacman/conf.c?h=v5.1.3#n263
• https://github.com/alpinelinux/alpine-secdb/blob/master/v3.11/community.yaml
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RH…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5…
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU…