CVE-2020-12656

Source
https://nvd.nist.gov/vuln/detail/CVE-2020-12656
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12656.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-12656
Related
Withdrawn
2020-09-15T17:06:22Z
Published
2020-05-05T06:15:11Z
Modified
2024-08-04T12:15:50Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

gssmechfree in net/sunrpc/authgss/gssmechswitch.c in the rpcsecgsskrb5 implementation in the Linux kernel through 5.6.10 lacks certain domainrelease 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

References

Affected packages

Debian:11 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.7.6-1

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.7.6-1

Ecosystem specific

{
    "urgency": "unimportant"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.7.6-1

Ecosystem specific

{
    "urgency": "unimportant"
}