Critical severity · published Feb 24, 2020
CVE-2019-18182
pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the download_with_xfercommand() function
9.8
CVSS
3.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FE
Fedora · Fedoraproject
30; 31; 32 · source: NVD
PA
Pacman · Pacman Project
before 5.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-18182
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-18182
Patch
https://git.archlinux.org/pacman.git/commit/?id=808a4f15ce82d2ed7eeb06de73d0f313620558ee
Exploit
https://git.archlinux.org/pacman.git/tree/src/pacman/conf.c?h=v5.1.3#n263
Release Notes
https://github.com/alpinelinux/alpine-secdb/blob/master/v3.11/community.yaml
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/
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