cbcvebase.
CVE-2020-10711
published 2020-05-22

CVE-2020-10711: 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…

PriorityP430medium5.9CVSS 3.1
AVNACHPRNUINSUCNINAH
EPSS
3.10%
86.3th percentile
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.

Affected

32 ranges· showing 25
VendorProductVersion rangeFixed in
canonicalubuntu_linux
canonicalubuntu_linux
canonicalubuntu_linux
canonicalubuntu_linux
canonicalubuntu_linux
debiandebian_linux
debiandebian_linux
debiandebian_linux
debianlinux< linux 5.6.14-1 (bookworm)linux 5.6.14-1 (bookworm)
linuxlinux_kernel< 5.75.7
linuxlinux_kernel>= 0 < 5.6.14-15.6.14-1
linuxlinux_kernel>= 0 < 5.6.14-15.6.14-1
linuxlinux_kernel>= 0 < 5.6.14-15.6.14-1
linuxlinux_kernel>= 0 < 5.6.14-15.6.14-1
linuxlinux_kernel>= 0 < 4.4.0-185.2154.4.0-185.215
linuxlinux_kernel>= 0 < 4.15.0-109.1104.15.0-109.110
linuxlinux_kernel>= 0 < 5.4.0-40.445.4.0-40.44
msrccbl_mariner_1.0_arm
msrccbl_mariner_1.0_x64
msrccm1_kernel_5.4.91-3_on_cbl_mariner_1.0
opensuseleap
opensuseleap
red_hatkernel
redhat3scale
redhatenterprise_linux

CVSS provenance

nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv6.4MEDIUM
vendor_ubuntu6.5MEDIUM
vendor_debian5.9MEDIUM
vendor_msrc5.9MEDIUM
vendor_redhat5.9MEDIUM
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