Vulnerability Monitor

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CVE-2021-35939

It was found that the fix for CVE-2017-7500 and CVE-2017-7501 was incomplete: the check was only implemented for the parent directory of the file to be created. A local unprivileged user who owns another ancestor directory could potentially use this flaw to gain root privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Published

2022-08-26T16:15:08.683

Last Modified

2024-11-21T06:12:47.457

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.7 (MEDIUM)

Weaknesses

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

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	rpm	rpm	< 4.18	Yes
Operating System	redhat	enterprise_linux	8.0	Yes

References

https://access.redhat.com/security/cve/CVE-2021-35939 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1964129 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556 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, Vendor Advisory ([email protected])
https://security.gentoo.org/glsa/202210-22 Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2021-35939 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1964129 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/rpm-software-management/rpm/commit/96ec957e281220f8e137a2d5eb23b83a6377d556 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, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202210-22 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)