CVE-2021-33910

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 20-07-2021 09:15

Last modified: - 14-06-2022 01:15

Total changes: - 18

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Low

Attack complexity

Local

Attack vector

High

Availability

None

Confidentiality

None

Integrity

Low

Privileges required

Unchanged

Scope

None

User interaction

5.5

Base score

1.8

3.6

Exploitability score

Impact score

Verification logic

vendor=systemd_project AND product=systemd AND versionStartIncluding=247 AND versionEndExcluding=247.8

vendor=systemd_project AND product=systemd AND versionEndExcluding=246.15

vendor=systemd_project AND product=systemd AND versionStartIncluding=248 AND versionEndExcluding=248.5

vendor=systemd_project AND product=systemd AND versionStartIncluding=249 AND versionEndExcluding=249.1

vendor=fedoraproject AND product=fedora AND version=33

vendor=fedoraproject AND product=fedora AND version=34

vendor=Debian AND product=debian_linux AND version=10.0

vendor=netapp AND product=solidfire AND version=-

vendor=netapp AND product=hci_management_node AND version=-

Reference

https://github.com/systemd/systemd/pull/20256/commits/441e0115646d54f080e5c3bb0ba477c892861ab9
https://www.openwall.com/lists/oss-security/2021/07/20/2
GLSA-202107-48-Third Party Advisory
DSA-4942-Third Party Advisory
http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html
https://github.com/systemd/systemd-stable/commit/764b74113e36ac5219a4b82a05f311b5a92136ce
https://github.com/systemd/systemd-stable/commit/4a1c5f34bd3e1daed4490e9d97918e504d19733b
FEDORA-2021-2a6ba64260-Mailing List, Third Party Advisory
https://github.com/systemd/systemd-stable/commit/b00674347337b7531c92fdb65590ab253bb57538
https://github.com/systemd/systemd/commit/b34a4f0e6729de292cb3b0c03c1d48f246ad896b
https://github.com/systemd/systemd-stable/commit/cfd14c65374027b34dbbc4f0551456c5dc2d1f61
FEDORA-2021-166e461c8d-Mailing List, Third Party Advisory
[oss-security] 20210804 Re: Pop!_OS Membership to linux-distros list-Mailing List, Patch, Third Party Advisory
[oss-security] 20210817 Re: Pop!_OS Membership to linux-distros list-Mailing List, Patch, Third Party Advisory
[oss-security] 20210907 Re: Pop!_OS Membership to linux-distros list-Mailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20211104-0008/
https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf

Keywords

CVE-2021-33910

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-33910

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures