CVE-2021-23240

Name
CVE-2021-23240
Description
selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.
NVD Severity
medium
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
Exploit https://bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23240
Release Notes https://www.sudo.ws/stable.html#1.9.5
Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/
Third Party Advisory https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/
Third Party Advisory https://security.gentoo.org/glsa/202101-33
Third Party Advisory https://security.netapp.com/advisory/ntap-20210129-0010/
Mailing List https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4@%3Cissues.bookkeeper.apache.org%3E
Mailing List https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b@%3Cissues.bookkeeper.apache.org%3E

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* sudo >= None < 1.8.32
cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* sudo >= 1.9.0 < 1.9.5

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
sudo 3.10-main 1.9.5p2-r0 Natanael Copa <ncopa@alpinelinux.org> fixed