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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current Description
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
** DISPUTED ** 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.
Metrics
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** DISPUTED ** 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 a
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 me
Modified Analysis by NIST4/29/2022 9:26:47 AM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
*cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
*cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html Mailing List, Third Party Advisory
Changed
Reference Type
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html No Types Assigned
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html Mailing List, Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4483-1/ No Types Assigned
https://usn.ubuntu.com/4483-1/ Third Party Advisory
Changed
Reference Type
https://usn.ubuntu.com/4485-1/ No Types Assigned
https://usn.ubuntu.com/4485-1/ Third Party Advisory
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.
** DISPUTED ** 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 a
Initial Analysis by NIST5/07/2020 12:56:12 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Added
CVSS V2
NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P)
Added
CWE
NIST CWE-772
Added
CPE Configuration
OR
*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (including) 5.6.10
Changed
Reference Type
https://bugzilla.kernel.org/show_bug.cgi?id=206651 No Types Assigned
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