Vulnerability Monitor

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CVE-2021-4028

A flaw in the Linux kernel's implementation of RDMA communications manager listener code allowed an attacker with local access to setup a socket to listen on a high port allowing for a list element to be used after free. Given the ability to execute code, a local attacker could leverage this use-after-free to crash the system or possibly escalate privileges on the system.

Published

2022-08-24T16:15:09.197

Last Modified

2024-11-21T06:36:45.057

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

Weaknesses

Type: Primary
CWE-416
Type: Secondary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 5.10.71	Yes
Operating System	linux	linux_kernel	< 5.14.10	Yes
Operating System	suse	linux_enterprise	15.0	Yes
Operating System	suse	linux_enterprise	15.0	Yes

References

https://access.redhat.com/security/cve/CVE-2021-4028 Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2027201 Issue Tracking, Third Party Advisory ([email protected])
https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 Mailing List, Patch, Vendor Advisory ([email protected])
https://lkml.org/lkml/2021/10/4/697 Mailing List, Patch, Vendor Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20221228-0002/ Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2021-4028 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2027201 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.suse.com/show_bug.cgi?id=1193167#c0 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bc0bdc5afaa74 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lkml.org/lkml/2021/10/4/697 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20221228-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)