CVE-2020-12656
See a problem?- 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- Withdrawn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
-
- https://bugzilla.kernel.org/show_bug.cgi?id=206651
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
- https://usn.ubuntu.com/4483-1/
- https://usn.ubuntu.com/4485-1/
- https://security-tracker.debian.org/tracker/CVE-2020-12656
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source