CVE-2021-33910

CVSS V2 Medium 4.9 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2021-33910
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2021-07-20T19:15:09
  • Last Modified Date
  • 2022-06-14T11:15:09
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* 1 OR 246.15
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* 1 OR 247 247.8
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* 1 OR 248 248.5
cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:* 1 OR 249 249.1
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:L/AC:L/Au:N/C:N/I:N/A:C
  • Access Vector
  • LOCAL
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • COMPLETE
  • Base Score
  • 4.9
  • Severity
  • MEDIUM
  • Exploitability Score
  • 3.9
  • Impact Score
  • 6.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • LOW
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
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://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-33910
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33910
History
Created Old Value New Value Data Type Notes
2022-05-10 06:35:48 Added to TrackCVE
2022-12-05 06:30:36 2021-07-20T19:15Z 2021-07-20T19:15:09 CVE Published Date updated
2022-12-05 06:30:36 2022-06-14T11:15:09 CVE Modified Date updated
2022-12-05 06:30:36 Modified Vulnerability Status updated
2022-12-05 06:30:41 References updated