PublicDateAtUSN: 2020-10-14 00:00:00 UTC
Candidate: CVE-2020-24490
PublicDate: 2021-02-02 22:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24490
 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00435.html
 https://github.com/google/security-research/security/advisories/GHSA-ccx2-w2r4-x649
 https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=a2ec905d1e160a33b2e210e45ad30445ef26ce0e
 https://ubuntu.com/security/notices/USN-4592-1
 https://ubuntu.com/security/notices/USN-4752-1
Description:
 Improper buffer restrictions in BlueZ may allow an unauthenticated user to
 potentially enable denial of service via adjacent access. This affects all
 Linux kernel versions that support BlueZ.
Ubuntu-Description:
 Andy Nguyen discovered that the Bluetooth HCI event packet parser in the
 Linux kernel did not properly handle event advertisements of certain sizes,
 leading to a heap-based buffer overflow. A physically proximate remote
 attacker could use this to cause a denial of service (system crash) or
 possibly execute arbitrary code.
Notes:
 sbeattie| This issue affected kernels 4.18 and later; as such Ubuntu
   20.04's 5.4 kernel was fixed around 2020/09/21, before the advisory
   was issued.
 sbeattie| it is asserted that b2cc9761f144e8ef714be8c590603073b80ddc13
   made the vulnerability accessible.
 sbeattie> it's not clear if
     https://lore.kernel.org/linux-bluetooth/20201016180956.707681-1-luiz.dentz@gmail.com/
   is needed as well.
Mitigation:
Bugs:
Priority: medium
Discovered-by: Andy Nguyen
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H [6.5 MEDIUM]

Patches_linux:
 break-fix: c215e9397b00b3045a668120ed7dbd89f2866e74 a2ec905d1e160a33b2e210e45ad30445ef26ce0e
upstream_linux: released (5.8)
precise/esm_linux: not-affected (3.0.0-12.20)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: not-affected (3.11.0-12.19)
xenial_linux: not-affected (4.2.0-16.19)
esm-infra/xenial_linux: not-affected (4.2.0-16.19)
bionic_linux: not-affected (4.13.0-16.19)
focal_linux: released (5.4.0-48.52)
groovy_linux: not-affected (5.8.0-16.17)
devel_linux: not-affected (5.8.0-36.40+21.04.1)

Patches_linux-hwe:
upstream_linux-hwe: released (5.8)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: not-affected (4.8.0-36.36~16.04.1)
esm-infra/xenial_linux-hwe: not-affected (4.8.0-36.36~16.04.1)
bionic_linux-hwe: ignored (converted to linux-hwe-5.4)
focal_linux-hwe: DNE
groovy_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-5.4:
upstream_linux-hwe-5.4: released (5.8)
precise/esm_linux-hwe-5.4: DNE
trusty_linux-hwe-5.4: DNE
trusty/esm_linux-hwe-5.4: DNE
xenial_linux-hwe-5.4: DNE
bionic_linux-hwe-5.4: released (5.4.0-48.52~18.04.1)
focal_linux-hwe-5.4: DNE
groovy_linux-hwe-5.4: DNE
devel_linux-hwe-5.4: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.8)
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: not-affected
esm-infra/xenial_linux-hwe-edge: not-affected
bionic_linux-hwe-edge: ignored (superseded by linux-hwe)
focal_linux-hwe-edge: DNE
groovy_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (5.8)
precise/esm_linux-lts-trusty: not-affected (3.13.0-24.46~precise1)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
focal_linux-lts-trusty: DNE
groovy_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.8)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: not-affected (4.4.0-13.29~14.04.1)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
focal_linux-lts-xenial: DNE
groovy_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.8)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-kvm: not-affected (CONFIG_BT not set)
bionic_linux-kvm: not-affected (CONFIG_BT not set)
focal_linux-kvm: not-affected (CONFIG_BT not set)
groovy_linux-kvm: not-affected (CONFIG_BT not set)
devel_linux-kvm: not-affected (CONFIG_BT not set)

Patches_linux-aws:
upstream_linux-aws: not-affected (CONFIG_BT not set)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: not-affected (CONFIG_BT not set)
xenial_linux-aws: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-aws: not-affected (CONFIG_BT not set)
bionic_linux-aws: not-affected (CONFIG_BT not set)
focal_linux-aws: not-affected (CONFIG_BT not set)
groovy_linux-aws: not-affected (CONFIG_BT not set)
devel_linux-aws: not-affected (CONFIG_BT not set)

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: not-affected (CONFIG_BT not set)
precise/esm_linux-aws-5.0: DNE
trusty_linux-aws-5.0: DNE
trusty/esm_linux-aws-5.0: DNE
xenial_linux-aws-5.0: DNE
bionic_linux-aws-5.0: not-affected (CONFIG_BT not set)
focal_linux-aws-5.0: DNE
groovy_linux-aws-5.0: DNE
devel_linux-aws-5.0: DNE

Patches_linux-aws-5.3:
upstream_linux-aws-5.3: not-affected (CONFIG_BT not set)
precise/esm_linux-aws-5.3: DNE
trusty_linux-aws-5.3: DNE
trusty/esm_linux-aws-5.3: DNE
xenial_linux-aws-5.3: DNE
bionic_linux-aws-5.3: not-affected (CONFIG_BT not set)
focal_linux-aws-5.3: DNE
groovy_linux-aws-5.3: DNE
devel_linux-aws-5.3: DNE

Patches_linux-aws-5.4:
upstream_linux-aws-5.4: not-affected (CONFIG_BT not set)
precise/esm_linux-aws-5.4: DNE
trusty_linux-aws-5.4: DNE
trusty/esm_linux-aws-5.4: DNE
xenial_linux-aws-5.4: DNE
bionic_linux-aws-5.4: not-affected (CONFIG_BT not set)
focal_linux-aws-5.4: DNE
groovy_linux-aws-5.4: DNE
devel_linux-aws-5.4: DNE

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: not-affected (CONFIG_BT not set)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-aws-hwe: not-affected (CONFIG_BT not set)
bionic_linux-aws-hwe: DNE
focal_linux-aws-hwe: DNE
groovy_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: not-affected (CONFIG_BT not set)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: not-affected (CONFIG_BT not set)
xenial_linux-azure: not-affected (CONFIG_BT not set)
esm-infra/xenial_linux-azure: not-affected (CONFIG_BT not set)
bionic_linux-azure: not-affected (CONFIG_BT not set)
focal_linux-azure: not-affected (CONFIG_BT not set)
groovy_linux-azure: not-affected (CONFIG_BT not set)
devel_linux-azure: not-affected (CONFIG_BT not set)

Patches_linux-azure-4.15:
upstream_linux-azure-4.15: not-affected (CONFIG_BT not set)
precise/esm_linux-azure-4.15: DNE
trusty_linux-azure-4.15: DNE
trusty/esm_linux-azure-4.15: DNE
xenial_linux-azure-4.15: DNE
bionic_linux-azure-4.15: not-affected (CONFIG_BT not set)
focal_linux-azure-4.15: DNE
groovy_linux-azure-4.15: DNE
devel_linux-azure-4.15: DNE

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: not-affected (CONFIG_BT not set)
precise/esm_linux-azure-5.3: DNE
trusty_linux-azure-5.3: DNE
trusty/esm_linux-azure-5.3: DNE
xenial_linux-azure-5.3: DNE
bionic_linux-azure-5.3: not-affected (CONFIG_BT not set)
focal_linux-azure-5.3: DNE
groovy_linux-azure-5.3: DNE
devel_linux-azure-5.3: DNE

Patches_linux-azure-5.4:
upstream_linux-azure-5.4: not-affected (CONFIG_BT not set)
precise/esm_linux-azure-5.4: DNE
trusty_linux-azure-5.4: DNE
trusty/esm_linux-azure-5.4: DNE
xenial_linux-azure-5.4: DNE
bionic_linux-azure-5.4: not-affected (CONFIG_BT not set)
focal_linux-azure-5.4: DNE
groovy_linux-azure-5.4: DNE
devel_linux-azure-5.4: DNE

Patches_linux-azure-edge:
upstream_linux-azure-edge: not-affected (CONFIG_BT not set)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: DNE
bionic_linux-azure-edge: not-affected (CONFIG_BT not set)
focal_linux-azure-edge: DNE
groovy_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.8)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: not-affected (cloud-only kernel)
esm-infra/xenial_linux-gcp: not-affected (cloud-only kernel)
bionic_linux-gcp: not-affected (cloud-only kernel)
focal_linux-gcp: not-affected (cloud-only kernel)
groovy_linux-gcp: not-affected (cloud-only kernel)
devel_linux-gcp: not-affected (cloud-only kernel)

Patches_linux-gcp-4.15:
upstream_linux-gcp-4.15: not-affected (cloud-only kernel)
precise/esm_linux-gcp-4.15: DNE
trusty_linux-gcp-4.15: DNE
trusty/esm_linux-gcp-4.15: DNE
xenial_linux-gcp-4.15: DNE
bionic_linux-gcp-4.15: not-affected (cloud-only kernel)
focal_linux-gcp-4.15: DNE
groovy_linux-gcp-4.15: DNE
devel_linux-gcp-4.15: DNE

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: not-affected (cloud-only kernel)
precise/esm_linux-gcp-5.3: DNE
trusty_linux-gcp-5.3: DNE
trusty/esm_linux-gcp-5.3: DNE
xenial_linux-gcp-5.3: DNE
bionic_linux-gcp-5.3: not-affected (cloud-only kernel)
focal_linux-gcp-5.3: DNE
groovy_linux-gcp-5.3: DNE
devel_linux-gcp-5.3: DNE

Patches_linux-gcp-5.4:
upstream_linux-gcp-5.4: not-affected (cloud-only kernel)
precise/esm_linux-gcp-5.4: DNE
trusty_linux-gcp-5.4: DNE
trusty/esm_linux-gcp-5.4: DNE
xenial_linux-gcp-5.4: DNE
bionic_linux-gcp-5.4: not-affected (cloud-only kernel)
focal_linux-gcp-5.4: DNE
groovy_linux-gcp-5.4: DNE
devel_linux-gcp-5.4: DNE

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: not-affected (cloud-only kernel)
precise/esm_linux-gcp-edge: DNE
trusty_linux-gcp-edge: DNE
trusty/esm_linux-gcp-edge: DNE
xenial_linux-gcp-edge: DNE
bionic_linux-gcp-edge: not-affected (cloud-only kernel)
focal_linux-gcp-edge: DNE
groovy_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: not-affected (cloud-only kernel)
precise/esm_linux-gke-4.15: DNE
trusty_linux-gke-4.15: DNE
trusty/esm_linux-gke-4.15: DNE
xenial_linux-gke-4.15: DNE
bionic_linux-gke-4.15: not-affected (cloud-only kernel)
focal_linux-gke-4.15: DNE
groovy_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: not-affected (cloud-only kernel)
precise/esm_linux-gke-5.0: DNE
trusty_linux-gke-5.0: DNE
trusty/esm_linux-gke-5.0: DNE
xenial_linux-gke-5.0: DNE
bionic_linux-gke-5.0: not-affected (cloud-only kernel)
focal_linux-gke-5.0: DNE
groovy_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: not-affected (cloud-only kernel)
precise/esm_linux-gke-5.3: DNE
trusty_linux-gke-5.3: DNE
trusty/esm_linux-gke-5.3: DNE
xenial_linux-gke-5.3: DNE
bionic_linux-gke-5.3: not-affected (cloud-only kernel)
focal_linux-gke-5.3: DNE
groovy_linux-gke-5.3: DNE
devel_linux-gke-5.3: DNE

Patches_linux-oracle:
upstream_linux-oracle: not-affected (cloud-only kernel)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: not-affected (cloud-only kernel)
esm-infra/xenial_linux-oracle: not-affected (cloud-only kernel)
bionic_linux-oracle: not-affected (cloud-only kernel)
focal_linux-oracle: not-affected (cloud-only kernel)
groovy_linux-oracle: not-affected (cloud-only kernel)
devel_linux-oracle: not-affected (cloud-only kernel)

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: not-affected (cloud-only kernel)
precise/esm_linux-oracle-5.0: DNE
trusty_linux-oracle-5.0: DNE
trusty/esm_linux-oracle-5.0: DNE
xenial_linux-oracle-5.0: DNE
bionic_linux-oracle-5.0: not-affected (cloud-only kernel)
focal_linux-oracle-5.0: DNE
groovy_linux-oracle-5.0: DNE
devel_linux-oracle-5.0: DNE

Patches_linux-oracle-5.3:
upstream_linux-oracle-5.3: not-affected (cloud-only kernel)
precise/esm_linux-oracle-5.3: DNE
trusty_linux-oracle-5.3: DNE
trusty/esm_linux-oracle-5.3: DNE
xenial_linux-oracle-5.3: DNE
bionic_linux-oracle-5.3: not-affected (cloud-only kernel)
focal_linux-oracle-5.3: DNE
groovy_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE

Patches_linux-oracle-5.4:
upstream_linux-oracle-5.4: not-affected (cloud-only kernel)
precise/esm_linux-oracle-5.4: DNE
trusty_linux-oracle-5.4: DNE
trusty/esm_linux-oracle-5.4: DNE
xenial_linux-oracle-5.4: DNE
bionic_linux-oracle-5.4: not-affected (cloud-only kernel)
focal_linux-oracle-5.4: DNE
groovy_linux-oracle-5.4: DNE
devel_linux-oracle-5.4: DNE

Patches_linux-oem:
upstream_linux-oem: released (5.8)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: not-affected
bionic_linux-oem: not-affected (4.15.0-1002.3)
focal_linux-oem: DNE
groovy_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-oem-5.6:
upstream_linux-oem-5.6: released (5.8)
precise/esm_linux-oem-5.6: DNE
trusty_linux-oem-5.6: DNE
trusty/esm_linux-oem-5.6: DNE
xenial_linux-oem-5.6: DNE
bionic_linux-oem-5.6: DNE
focal_linux-oem-5.6: released (5.6.0-1048.52)
groovy_linux-oem-5.6: DNE
devel_linux-oem-5.6: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.8)
precise/esm_linux-oem-osp1: DNE
trusty_linux-oem-osp1: DNE
trusty/esm_linux-oem-osp1: DNE
xenial_linux-oem-osp1: DNE
bionic_linux-oem-osp1: released (5.0.0-1070.76)
focal_linux-oem-osp1: DNE
groovy_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-raspi:
upstream_linux-raspi: released (5.8)
precise/esm_linux-raspi: DNE
trusty_linux-raspi: DNE
trusty/esm_linux-raspi: DNE
xenial_linux-raspi: DNE
bionic_linux-raspi: DNE
focal_linux-raspi: released (5.4.0-1019.21)
groovy_linux-raspi: not-affected (5.8.0-1002.5)
devel_linux-raspi: not-affected (5.8.0-1008.11+21.04.1)

Patches_linux-raspi2:
upstream_linux-raspi2: released (5.8)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: not-affected (4.2.0-1013.19)
bionic_linux-raspi2: not-affected (4.13.0-1005.5)
focal_linux-raspi2: ignored (superseded by linux-raspi2-5.4)
groovy_linux-raspi2: DNE
devel_linux-raspi2: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.8)
precise/esm_linux-raspi2-5.3: DNE
trusty_linux-raspi2-5.3: DNE
trusty/esm_linux-raspi2-5.3: DNE
xenial_linux-raspi2-5.3: DNE
bionic_linux-raspi2-5.3: released (5.3.0-1036.38)
focal_linux-raspi2-5.3: DNE
groovy_linux-raspi2-5.3: DNE
devel_linux-raspi2-5.3: DNE

Patches_linux-raspi-5.4:
upstream_linux-raspi-5.4: released (5.8)
precise/esm_linux-raspi-5.4: DNE
trusty_linux-raspi-5.4: DNE
trusty/esm_linux-raspi-5.4: DNE
xenial_linux-raspi-5.4: DNE
bionic_linux-raspi-5.4: released (5.4.0-1019.21~18.04.1)
focal_linux-raspi-5.4: DNE
groovy_linux-raspi-5.4: DNE
devel_linux-raspi-5.4: DNE

Patches_linux-riscv:
upstream_linux-riscv: released (5.8)
precise/esm_linux-riscv: DNE
trusty_linux-riscv: DNE
trusty/esm_linux-riscv: DNE
xenial_linux-riscv: DNE
bionic_linux-riscv: DNE
focal_linux-riscv: released (5.4.0-34.38)
groovy_linux-riscv: not-affected (5.8.0-1.1)
devel_linux-riscv: not-affected (5.8.0-10.12+21.04.1)

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.8)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: not-affected (4.4.0-1013.15)
bionic_linux-snapdragon: not-affected (4.4.0-1077.82)
focal_linux-snapdragon: DNE
groovy_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-hwe-5.8:
upstream_linux-hwe-5.8: released (5.8)
precise/esm_linux-hwe-5.8: DNE
trusty_linux-hwe-5.8: DNE
trusty/esm_linux-hwe-5.8: DNE
xenial_linux-hwe-5.8: DNE
bionic_linux-hwe-5.8: DNE
focal_linux-hwe-5.8: not-affected (5.8.0-23.24~20.04.1)
groovy_linux-hwe-5.8: DNE
devel_linux-hwe-5.8: DNE

Patches_linux-gke-5.4:
upstream_linux-gke-5.4: released (5.8)
precise/esm_linux-gke-5.4: DNE
trusty_linux-gke-5.4: DNE
trusty/esm_linux-gke-5.4: DNE
xenial_linux-gke-5.4: DNE
bionic_linux-gke-5.4: not-affected (5.4.0-1025.25~18.04.1)
focal_linux-gke-5.4: DNE
groovy_linux-gke-5.4: DNE
devel_linux-gke-5.4: DNE

Patches_linux-gkeop-5.4:
upstream_linux-gkeop-5.4: released (5.8)
precise/esm_linux-gkeop-5.4: DNE
trusty_linux-gkeop-5.4: DNE
trusty/esm_linux-gkeop-5.4: DNE
xenial_linux-gkeop-5.4: DNE
bionic_linux-gkeop-5.4: not-affected (5.4.0-1001.1)
focal_linux-gkeop-5.4: DNE
groovy_linux-gkeop-5.4: DNE
devel_linux-gkeop-5.4: DNE

Patches_linux-dell300x:
upstream_linux-dell300x: released (5.8)
precise/esm_linux-dell300x: DNE
trusty_linux-dell300x: DNE
trusty/esm_linux-dell300x: DNE
xenial_linux-dell300x: DNE
bionic_linux-dell300x: not-affected (4.15.0-1005.8)
focal_linux-dell300x: DNE
groovy_linux-dell300x: DNE
devel_linux-dell300x: DNE

Patches_linux-oem-5.10:
upstream_linux-oem-5.10: released (5.8)
precise/esm_linux-oem-5.10: DNE
trusty_linux-oem-5.10: DNE
trusty/esm_linux-oem-5.10: DNE
xenial_linux-oem-5.10: DNE
bionic_linux-oem-5.10: DNE
focal_linux-oem-5.10: not-affected (5.10.0-1008.9)
groovy_linux-oem-5.10: DNE
devel_linux-oem-5.10: DNE

Patches_linux-gkeop:
upstream_linux-gkeop: released (5.8)
precise/esm_linux-gkeop: DNE
trusty_linux-gkeop: DNE
trusty/esm_linux-gkeop: DNE
xenial_linux-gkeop: DNE
bionic_linux-gkeop: DNE
focal_linux-gkeop: not-affected (5.4.0-1008.9)
groovy_linux-gkeop: DNE
devel_linux-gkeop: DNE