5.5

CVE-2020-12656

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 5.6.10
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Opensuse ≫ Leap Version 15.1
Opensuse ≫ Leap Version 15.2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.25
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NIST 2.1 3.9 2.9
AV:L/AC:L/Au:N/C:N/I:N/A:P
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4485-1/
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4483-1/
Third Party Advisory
https://bugzilla.kernel.org/show_bug.cgi?id=206651
Vendor Advisory
Issue Tracking