vulnerability
Ubuntu: (CVE-2021-44512): tmate-ssh-server vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:N/C:P/I:P/A:P) | Dec 7, 2021 | Jun 26, 2025 | Aug 18, 2025 |
Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
Dec 7, 2021
Added
Jun 26, 2025
Modified
Aug 18, 2025
Description
World-writable permissions on the /tmp/tmate/sessions directory in tmate-ssh-server 2.3.0 allow a local attacker to compromise the integrity of session handling, or obtain the read-write session ID from a read-only session symlink in this directory.
Solution
no-fix-ubuntu-package
References
- CVE-2021-44512
- https://attackerkb.com/topics/CVE-2021-44512
- CWE-732
- URL-https://bugzilla.suse.com/show_bug.cgi?id=1189388
- URL-https://github.com/tmate-io/tmate-ssh-server/commit/1c020d1f5ca462f5b150b46a027aaa1bbe3c9596
- URL-https://www.cve.org/CVERecord?id=CVE-2021-44512
- URL-https://www.openwall.com/lists/oss-security/2021/12/06/2
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