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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-33910 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html CVE, MITRE Exploit  Third Party Advisory  VDB Entry 
http://www.openwall.com/lists/oss-security/2021/08/04/2 CVE, MITRE Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/08/17/3 CVE, MITRE Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2021/09/07/3 CVE, MITRE Mailing List  Patch  Third Party Advisory 
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf CVE, MITRE
https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733b CVE, MITRE Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136ce CVE, MITRE Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538 CVE, MITRE Patch  Third Party Advisory 
https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61 CVE, MITRE Patch  Third Party Advisory 
https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896b CVE, MITRE Patch  Third Party Advisory 
https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9 CVE, MITRE Patch  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/ CVE, MITRE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/ CVE, MITRE
https://security.gentoo.org/glsa/202107-48 CVE, MITRE Third Party Advisory 
https://security.netapp.com/advisory/ntap-20211104-0008/ CVE, MITRE Third Party Advisory 
https://www.debian.org/security/2021/dsa-4942 CVE, MITRE Third Party Advisory 
https://www.openwall.com/lists/oss-security/2021/07/20/2 CVE, MITRE 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   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

21 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-33910
NVD Published Date:
07/20/2021
NVD Last Modified:
06/09/2025
Source:
MITRE