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Mend.io Vulnerability Database

CVE-2021-33910

Date: July 20, 2021

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.

Language: C

Severity Score

5.5

Related Resources (23)

Url: https://www.debian.org/security/2021/dsa-4942

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-33910

Url: https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61

Url: https://security-tracker.debian.org/tracker/CVE-2021-33910

Url: https://www.openwall.com/lists/oss-security/2021/07/20/2

Url: https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896b

Url: https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

Url: https://security.netapp.com/advisory/ntap-20211104-0008/

Url: https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733b

Url: http://www.openwall.com/lists/oss-security/2021/08/17/3

Url: http://www.openwall.com/lists/oss-security/2021/08/04/2

Url: https://access.redhat.com/security/cve/CVE-2021-33910

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2LSDMHAKI4LGFOCSPXNVVSEWQFAVFWR7/

Url: http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html

Url: https://security.gentoo.org/glsa/202107-48

Url: https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538

Url: http://www.openwall.com/lists/oss-security/2021/09/07/3

Url: https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136ce

Url: https://github.com/systemd/systemd/releases

Url: https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-33910

Url: https://www.mend.io/vulnerability-database/CVE-2021-33910

Severity Score

5.5

Weakness Type (CWE)

Allocation of Resources Without Limits or Throttling

CWE-770

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	4.9
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-33910

Date: July 20, 2021

Language: C

Severity Score

Related Resources (23)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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