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CVE-2021-33910 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  5.5 MEDIUM
Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html Exploit  Third Party Advisory  VDB Entry 
http://www.openwall.com/lists/oss-security/2021/08/04/2 Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/08/17/3 Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/09/07/3 Mailing List  Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733b Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136ce Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538 Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61 Patch  Third Party Advisory 
https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896b Patch  Third Party Advisory 
https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9 Patch  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/ Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/ Mailing List  Third Party Advisory 
https://security.gentoo.org/glsa/202107-48 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211104-0008/ Third Party Advisory 
https://www.debian.org/security/2021/dsa-4942 Third Party Advisory 
https://www.openwall.com/lists/oss-security/2021/07/20/2 Exploit  Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-770 Allocation of Resources Without Limits or Throttling cwe source acceptance level NIST  

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Change History

14 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33910
NVD Published Date:
07/20/2021
NVD Last Modified:
11/23/2021
Source:
MITRE