CVE-2019-18634

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

published January 29, 2020

CVSS
—
EPSS
19%
Percentile
97.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.19276 · 97.3th percentile
Published
2020-01-29T17:23Z
EPSS history
Timeline
  • 29 JAN 17:23Z
    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
    cvelistv5