CVE-2021-35938

published 2022-08-25

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…

Priority P4 31 medium 6.7 CVSS 3.1

AV L AC L PR H UI N S U C H I H A H

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.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
debian	rpm	< rpm 4.18.0+dfsg-1 (bookworm)	rpm 4.18.0+dfsg-1 (bookworm)
fedoraproject	fedora	—	—
msrc	cbl2_rpm_4.18.0-1_on_cbl_mariner_2.0	—	—
msrc	cm1_rpm_4.14.2-15_on_cbl_mariner_1.0	—	—
redhat	enterprise_linux	—	—
redhat	enterprise_linux	—	—
redhat	enterprise_linux	—	—
rpm	rpm	< 4.18.0	4.18.0
rpm	rpm	—	—
rpm	rpm	>= 0 < 4.18.0+dfsg-1	4.18.0+dfsg-1
rpm	rpm	>= 0 < 4.18.0+dfsg-1	4.18.0+dfsg-1
rpm	rpm	>= 0 < 4.18.0+dfsg-1	4.18.0+dfsg-1

CVSS provenance

nvd v3.1 6.7 MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

osv 6.7 MEDIUM

vendor_debian 6.7 MEDIUM

vendor_msrc 6.7 MEDIUM

vendor_redhat 6.7 MEDIUM

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