CVE-2020-10711 (GCVE-0-2020-10711)
Vulnerability from cvelistv5
Published
2020-05-22 14:09
Modified
2024-08-04 11:14
CWE
Summary
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
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10711 x_refsource_CONFIRM
https://www.openwall.com/lists/oss-security/2020/05/12/2 x_refsource_CONFIRM
https://security.netapp.com/advisory/ntap-20200608-0001/ x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html mailing-list, x_refsource_MLIST
https://www.debian.org/security/2020/dsa-4698 vendor-advisory, x_refsource_DEBIAN
https://www.debian.org/security/2020/dsa-4699 vendor-advisory, x_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html vendor-advisory, x_refsource_SUSE
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html vendor-advisory, x_refsource_SUSE
https://usn.ubuntu.com/4413-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4411-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4412-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4419-1/ vendor-advisory, x_refsource_UBUNTU
https://usn.ubuntu.com/4414-1/ vendor-advisory, x_refsource_UBUNTU
Impacted products
Vendor Product Version
Red Hat Kernel Version: all kernel versions before 5.7
Create a notification for this product.
Show details on NVD website


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