Vulnerability Monitor

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CVE-2021-35938

A symbolic link issue was found in rpm. It occurs when rpm sets the desired permissions and credentials after installing a file. A local unprivileged user could use this flaw to exchange the original file with a symbolic link to a security-critical file and escalate their privileges on the system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Published

2022-08-25T20:15:09.307

Last Modified

2024-11-21T06:12:47.313

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.7 (MEDIUM)

Weaknesses

Type: Secondary
CWE-59
Type: Primary
CWE-59

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	rpm	rpm	< 4.18.0	Yes
Operating System	fedoraproject	fedora	34	Yes
Operating System	redhat	enterprise_linux	7.0	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	redhat	enterprise_linux	9.0	Yes

References

https://access.redhat.com/security/cve/CVE-2021-35938 Vendor Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1964114 Issue Tracking, Vendor Advisory ([email protected])
https://bugzilla.suse.com/show_bug.cgi?id=1157880 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033 Patch, Third Party Advisory ([email protected])
https://github.com/rpm-software-management/rpm/pull/1919 Patch, Third Party Advisory ([email protected])
https://rpm.org/wiki/Releases/4.18.0 Release Notes ([email protected])
https://security.gentoo.org/glsa/202210-22 Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2021-35938 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1964114 Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.suse.com/show_bug.cgi?id=1157880 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/rpm-software-management/rpm/commit/25a435e90844ea98fe5eb7bef22c1aecf3a9c033 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/rpm-software-management/rpm/pull/1919 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://rpm.org/wiki/Releases/4.18.0 Release Notes (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202210-22 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)