In Sudo before 1.8.26, if pwfeedback is enabled in /etc/sudoers, users can trigger a stack-based buffer overflow in the privileged sudo process. (pwfeedback is a default setting in Linux Mint and elementary OS; however, it is NOT the default for upstream and many other packages, and would exist only if enabled by an administrator.) The attacker needs to deliver a long string to the stdin of getln() in tgetpass.c.
References
Information
Published : 2020-01-29 10:15
Updated : 2020-02-07 09:15
NVD link : CVE-2019-18634
Mitre link : CVE-2019-18634
JSON object : View
CWE
CWE-787
Out-of-bounds Write
Products Affected
debian
- debian_linux
sudo_project
- sudo