Vulnerability Description
basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) that results in an operating system crash.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Systemd Project | Systemd | < 246.15 |
| Fedoraproject | Fedora | 33 |
| Debian | Debian Linux | 10.0 |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-FilesyExploitThird Party AdvisoryVDB Entry
- http://www.openwall.com/lists/oss-security/2021/08/04/2Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/08/17/3Mailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2021/09/07/3Mailing ListPatchThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
- https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e5PatchThird Party Advisory
- https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311bPatchThird Party Advisory
- https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab2PatchThird Party Advisory
- https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456cPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad89PatchThird Party Advisory
- https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0bPatchThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202107-48Third Party Advisory
- https://security.netapp.com/advisory/ntap-20211104-0008/Third Party Advisory
FAQ
What is CVE-2021-33910?
CVE-2021-33910 is a vulnerability with a CVSS score of 5.5 (MEDIUM). basic/unit-name.c in systemd prior to 246.15, 247.8, 248.5, and 249.1 has a Memory Allocation with an Excessive Size Value (involving strdupa and alloca for a pathname controlled by a local attacker) ...
How severe is CVE-2021-33910?
CVE-2021-33910 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-33910?
Check the references section above for vendor advisories and patch information. Affected products include: Systemd Project Systemd, Fedoraproject Fedora, Debian Debian Linux, Netapp Hci Management Node, Netapp Solidfire.