gss_mech_free in net/sunrpc/auth_gss/gss_mech_switch.c in the rpcsec_gss_krb5 implementation in the Linux kernel through 5.6.10 lacks certain domain_release calls, leading to a memory leak. Note: This was disputed with the assertion that the issue does not grant any access not already available. It is a problem that on unloading a specific kernel module some memory is leaked, but loading kernel modules is a privileged operation. A user could also write a kernel module to consume any amount of memory they like and load that replicating the effect of this bug
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 14 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00057}

epss

{'score': 0.00118}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T12:04:22.563Z

Reserved: 2020-05-05T00:00:00

Link: CVE-2020-12656

cve-icon Vulnrichment

Updated: 2024-08-04T12:04:22.563Z

cve-icon NVD

Status : Modified

Published: 2020-05-05T06:15:11.120

Modified: 2024-11-21T05:00:00.270

Link: CVE-2020-12656

cve-icon Redhat

Severity : Low

Publid Date: 2020-05-05T00:00:00Z

Links: CVE-2020-12656 - Bugzilla

cve-icon OpenCVE Enrichment

No data.