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VuXML IDDescription
f3cf4b33-6013-11eb-9a0e-206a8a720317sudo -- Multiple vulnerabilities

Todd C. Miller reports:

When invoked as sudoedit, the same set of command line options are now accepted as for sudo -e. The -H and -P options are now rejected for sudoedit and sudo -e which matches the sudo 1.7 behavior. This is part of the fix for CVE-2021-3156.

Fixed a potential buffer overflow when unescaping backslashes in the command's arguments. Normally, sudo escapes special characters when running a command via a shell (sudo -s or sudo -i). However, it was also possible to run sudoedit with the -s or -i flags in which case no escaping had actually been done, making a buffer overflow possible. This fixes CVE-2021-3156.


Discovery 2021-01-26
Entry 2021-01-26
sudo
< 1.9.5p2

https://www.sudo.ws/stable.html#1.9.5p2
CVE-2021-3156