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CVE-2019-18634

Published: Jan 29, 2020

Modified: Aug 5, 2024

PUBLISHED

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://support.apple.com/kb/HT210919

x_refsource_CONFIRM

20200129 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

mailing-list

x_refsource_BUGTRAQ

https://www.sudo.ws/security.html

x_refsource_MISC

https://www.sudo.ws/alerts/pwfeedback.html

x_refsource_CONFIRM

[oss-security] 20200130 CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

mailing-list

x_refsource_MLIST

[oss-security] 20200131 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

mailing-list

x_refsource_MLIST

20200131 APPLE-SA-2020-1-28-2 macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra

mailing-list

x_refsource_FULLDISC

vendor-advisory

x_refsource_DEBIAN

[debian-lts-announce] 20200201 [SECURITY] [DLA 2094-1] sudo security update

mailing-list

x_refsource_MLIST

20200203 [slackware-security] sudo (SSA:2020-031-01)

mailing-list

x_refsource_BUGTRAQ

20200203 [SECURITY] [DSA 4614-1] sudo security update

mailing-list

x_refsource_BUGTRAQ

http://packetstormsecurity.com/files/156174/Slackware-Security-Advisory-sudo-Updates.html

x_refsource_MISC

http://packetstormsecurity.com/files/156189/Sudo-1.8.25p-Buffer-Overflow.html

x_refsource_MISC

[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

mailing-list

x_refsource_MLIST

[oss-security] 20200205 Re: CVE-2019-18634: buffer overflow in sudo when pwfeedback is enabled

mailing-list

x_refsource_MLIST

vendor-advisory

x_refsource_UBUNTU

https://security.netapp.com/advisory/ntap-20200210-0001/

x_refsource_CONFIRM

vendor-advisory

x_refsource_UBUNTU

vendor-advisory

x_refsource_REDHAT

vendor-advisory

x_refsource_REDHAT

vendor-advisory

x_refsource_REDHAT

openSUSE-SU-2020:0244

vendor-advisory

x_refsource_SUSE

FEDORA-2020-8b563bc5f4

vendor-advisory

x_refsource_FEDORA

vendor-advisory

x_refsource_REDHAT

vendor-advisory

x_refsource_GENTOO

FEDORA-2020-7c1b270959

vendor-advisory

x_refsource_FEDORA

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