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Debian Security Advisory DSA 4543-1 (sudo - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'sudo' package(s) announced via the DSA-4543-1 advisory.
Insight
Insight
Joe Vennix discovered that sudo, a program designed to provide limited super user privileges to specific users, when configured to allow a user to run commands as an arbitrary user via the ALL keyword in a Runas specification, allows to run commands as root by specifying the user ID - 1 or 4294967295. This could allow a user with sufficient sudo privileges to run commands as root even if the Runas specification explicitly disallows root access. Details can be found in the referenced upstream advisory.
Affected Software
Affected Software
'sudo' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For the oldstable distribution (stretch), this problem has been fixed in version 1.8.19p1-2.1+deb9u1. For the stable distribution (buster), this problem has been fixed in version 1.8.27-1+deb10u1. We recommend that you upgrade your sudo packages.