CVE-2021-35937

A race condition vulnerability was found in rpm. A local unprivileged user could use this flaw to bypass the checks that were introduced in response to CVE-2017-7500 and CVE-2017-7501, potentially gaining root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS v3.0 6.4 MEDIUM

6.4^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1964125	Issue Tracking Patch Vendor Advisory
https://www.usenix.org/legacy/event/sec05/tech/full_papers/borisov/borisov.pdf	Exploit Technical Description Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-35937	Vendor Advisory
https://rpm.org/wiki/Releases/4.18.0	Release Notes Vendor Advisory
https://security.gentoo.org/glsa/202210-22	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:6.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Information

Published : 2022-08-25 13:15

Updated : 2022-11-16 12:05

NVD link : CVE-2021-35937

Mitre link : CVE-2021-35937

JSON object : View

CWE

CWE-367

Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-59

Improper Link Resolution Before File Access ('Link Following')

Products Affected

fedoraproject

fedora

redhat

enterprise_linux

rpm

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6.4 /10