CVE-2019-18182: OS Command Injection
First published: Mon Feb 24 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Pacman Project | <5.2 | |
| Red Hat Fedora | =30 | |
| Red Hat Fedora | =31 | |
| Red Hat Fedora | =32 |
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Reference Links
- 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@lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K53C45EDWBU3UCN3IRIGR5EZUNWXS7BW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2TTUXXUW5OCOASIRMJK4RHEPLEA33Y6C/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KIDJ4XKBZRRVRFFGKUA3ZU6NFIP5JUG3/
Frequently Asked Questions
What is the severity of CVE-2019-18182?
CVE-2019-18182 is classified as a high severity vulnerability due to its potential for arbitrary command injection.
How do I fix CVE-2019-18182?
To fix CVE-2019-18182, upgrade Pacman to version 5.2 or later, which addresses the vulnerability.
What does CVE-2019-18182 affect?
CVE-2019-18182 affects versions of Pacman before 5.2 and specifically impacts Fedora versions 30 to 32 using unsigned databases.
How can CVE-2019-18182 be exploited?
CVE-2019-18182 can be exploited by an attacker when a user configures a non-default XferCommand and retrieves a maliciously crafted database.
What is the primary issue with CVE-2019-18182?
The primary issue with CVE-2019-18182 is arbitrary command injection in the download_with_xfercommand() function.
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- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/references
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- agent/event
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- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/pacman project
- canonical/pacman project
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/30
- version/red hat fedora/31
- version/red hat fedora/32