CVE-2019-18182

pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the download_with_xfercommand() function

published February 24, 2020

CVSS
โ€”
EPSS
4%
Percentile
89.5
In the wild
Unconfirmed
What it is

โšก A crafted database could turn your pacman setup into an unwitting accomplice! This vulnerability in versions before 5.2 allows arbitrary command injection when using unsigned databases. ๐Ÿ˜ฑ Think of it like accepting a package from an unknown sender without checking the contents. If the delivery contains something harmful, you might just open the door to chaos! An attacker could exploit this vulnerability to run arbitrary commands on your system, potentially leading to data theft, system damage, or worse. While it requires specific conditions to be met, the implications are certainly concerning if you're not careful!

Put simply

Think of it like accepting a package from an unknown sender without checking the contents. If the delivery contains something harmful, you might just open the door to chaos! The flaw lies in the download_with_xfercommand() function of pacman, which allows for command injection when an unsigned database is used alongside a non-default XferCommand.

What to do

An attacker could exploit this vulnerability to run arbitrary commands on your system, potentially leading to data theft, system damage, or worse. While it requires specific conditions to be met, the implications are certainly concerning if you're not careful! To protect yourself, update pacman to version 5.2 or later as soon as possible. Additionally, avoid using non-default XferCommands and ensure that databases are signed to prevent exploitation. ๐Ÿ”’ You've got this! Stay vigilant and keep your systems secure! ๐Ÿ›ก๏ธ

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03672 ยท 89.5th percentile
Published
2020-02-24T14:38Z
EPSS history
Timeline
  • 24 FEB 14:38Z
    pacman before 5.2 is vulnerable to arbitrary command injection in conf.c in the download_with_xfercommand() function
    cvelistv5