PT-2020-15900 · None+1 · Checkinstall+1

Gianni Tedesco + 1 · Published 2020-08-31 · Updated 2020-09-04 · CVE-2020-25031

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions checkinstall version 1.6.2

Description The issue arises when checkinstall is used to create a package containing a symlink, potentially leading to the creation of an executable file with mode 0777 permissions.

Recommendations For checkinstall version 1.6.2, consider avoiding the creation of packages that contain symlinks until a fix is available. As a temporary workaround, manually adjust the permissions of created executable files to prevent unintended access.

Exploit

Fix

Link Following

Weakness Enumeration

CWE-59

Related Identifiers

CVE-2020-25031

Affected Products

Debian

Checkinstall

References · 8

• 🔥 https://bugs.launchpad.net/ubuntu/+source/checkinstall/+bug/1861281 · Exploit
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-25031 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-25031 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-25031 · Security Note
• https://osv.dev/vulnerability/CVE-2020-25031 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-25031 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2020-25031 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-25031 · Vendor Advisory