vulnerability
Red Hat OpenShift: CVE-2019-18634: sudo: Stack based buffer overflow when pwfeedback is enabled
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:N/C:P/I:P/A:P) | Jan 29, 2020 | Dec 29, 2020 | Apr 11, 2025 |
Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
Jan 29, 2020
Added
Dec 29, 2020
Modified
Apr 11, 2025
Description
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.
Solution
linuxrpm-upgrade-redhat-coreos
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