A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allows a remote network user to crash the system kernel, resulting in a denial of service.
References
| Link | Resource |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html | Mailing List Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html | Mailing List Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10711 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200608-0001/ | Third Party Advisory |
| https://usn.ubuntu.com/4411-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4412-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4413-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4414-1/ | Third Party Advisory |
| https://usn.ubuntu.com/4419-1/ | Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4698 | Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4699 | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/05/12/2 | Mailing List Patch Third Party Advisory |
Configurations
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History
22 Apr 2022, 18:53
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Canonical ubuntu Linux
Canonical Opensuse Opensuse leap |
|
| CPE | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
|
| References | (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html - Mailing List, Third Party Advisory | |
| References | (UBUNTU) https://usn.ubuntu.com/4413-1/ - Third Party Advisory | |
| References | (UBUNTU) https://usn.ubuntu.com/4411-1/ - Third Party Advisory | |
| References | (UBUNTU) https://usn.ubuntu.com/4414-1/ - Third Party Advisory | |
| References | (UBUNTU) https://usn.ubuntu.com/4419-1/ - Third Party Advisory | |
| References | (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html - Mailing List, Third Party Advisory | |
| References | (UBUNTU) https://usn.ubuntu.com/4412-1/ - Third Party Advisory |
18 Aug 2020, 15:05
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:a:redhat:openstack:13:*:*:*:*:*:*:* |
Information
Published : 2020-05-22 15:15
Updated : 2023-12-10 13:27
NVD link : CVE-2020-10711
Mitre link : CVE-2020-10711
CVE.ORG link : CVE-2020-10711
JSON object : View
Products Affected
redhat
- enterprise_linux_aus
- enterprise_linux
- openstack
- enterprise_linux_server_tus
- 3scale
- messaging_realtime_grid
- virtualization_host
opensuse
- leap
debian
- debian_linux
linux
- linux_kernel
canonical
- ubuntu_linux
CWE
CWE-476
NULL Pointer Dereference