PublicDateAtUSN: 2019-12-30 05:15:00 UTC
Candidate: CVE-2019-20096
PublicDate: 2019-12-30 05:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20096
 https://git.kernel.org/linus/1d3ff0950e2b40dc861b1739029649d03f591820
 https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1
 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d3ff0950e2b40dc861b1739029649d03f591820
 https://ubuntu.com/security/notices/USN-4285-1
 https://ubuntu.com/security/notices/USN-4286-1
 https://ubuntu.com/security/notices/USN-4287-1
 https://ubuntu.com/security/notices/USN-4286-2
 https://ubuntu.com/security/notices/USN-4287-2
Description:
 In the Linux kernel before 5.1, there is a memory leak in
 __feat_register_sp() in net/dccp/feat.c, which may cause denial of service,
 aka CID-1d3ff0950e2b.
Ubuntu-Description:
 It was discovered that the Datagram Congestion Control Protocol (DCCP)
 implementation in the Linux kernel did not properly deallocate memory in
 certain error conditions. An attacker could possibly use this to cause a
 denial of service (kernel memory exhaustion).
Notes:
Mitigation:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H [5.5 MEDIUM]

Patches_linux:
 break-fix: e8ef967a54f401ac5e8637b7f7f8bddb006144c4 1d3ff0950e2b40dc861b1739029649d03f591820
upstream_linux: released (5.1~rc4)
precise/esm_linux: ignored (was needed ESM criteria)
trusty_linux: ignored (out of standard support)
trusty/esm_linux: ignored (was needed ESM criteria)
xenial_linux: released (4.4.0-174.204)
esm-infra/xenial_linux: released (4.4.0-174.204)
bionic_linux: released (4.15.0-88.88)
disco_linux: ignored (reached end-of-life)
eoan_linux: not-affected (5.2.0-8.9)
focal_linux: not-affected (5.4.0-9.12)
devel_linux: not-affected (5.4.0-9.12)

Patches_linux-hwe:
upstream_linux-hwe: released (5.1~rc4)
precise/esm_linux-hwe: DNE
trusty_linux-hwe: DNE
trusty/esm_linux-hwe: DNE
xenial_linux-hwe: released (4.15.0-88.88~16.04.1)
esm-infra/xenial_linux-hwe: released (4.15.0-88.88~16.04.1)
bionic_linux-hwe: released (5.3.0-26.28~18.04.1)
disco_linux-hwe: DNE
eoan_linux-hwe: DNE
focal_linux-hwe: DNE
devel_linux-hwe: DNE

Patches_linux-hwe-edge:
upstream_linux-hwe-edge: released (5.1~rc4)
precise/esm_linux-hwe-edge: DNE
trusty_linux-hwe-edge: DNE
trusty/esm_linux-hwe-edge: DNE
xenial_linux-hwe-edge: ignored (was needs-triage now end-of-life)
esm-infra/xenial_linux-hwe-edge: ignored (was needs-triage now end-of-life)
bionic_linux-hwe-edge: ignored (was needs-triage now end-of-life)
disco_linux-hwe-edge: DNE
eoan_linux-hwe-edge: DNE
focal_linux-hwe-edge: DNE
devel_linux-hwe-edge: DNE

Patches_linux-lts-xenial:
upstream_linux-lts-xenial: released (5.1~rc4)
precise/esm_linux-lts-xenial: DNE
trusty_linux-lts-xenial: ignored (out of standard support)
trusty/esm_linux-lts-xenial: released (4.4.0-174.204~14.04.1)
xenial_linux-lts-xenial: DNE
bionic_linux-lts-xenial: DNE
disco_linux-lts-xenial: DNE
eoan_linux-lts-xenial: DNE
focal_linux-lts-xenial: DNE
devel_linux-lts-xenial: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (5.1~rc4)
precise/esm_linux-lts-trusty: ignored (was needed ESM criteria)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
xenial_linux-lts-trusty: DNE
bionic_linux-lts-trusty: DNE
disco_linux-lts-trusty: DNE
eoan_linux-lts-trusty: DNE
focal_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-oem:
upstream_linux-oem: released (5.1~rc4)
precise/esm_linux-oem: DNE
trusty_linux-oem: DNE
trusty/esm_linux-oem: DNE
xenial_linux-oem: ignored (was needs-triage now end-of-life)
bionic_linux-oem: released (4.15.0-1073.83)
disco_linux-oem: ignored (reached end-of-life)
eoan_linux-oem: released (4.15.0-1073.83)
focal_linux-oem: DNE
devel_linux-oem: DNE

Patches_linux-oem-osp1:
upstream_linux-oem-osp1: released (5.1~rc4)
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 (5.0.0-1039.44)
disco_linux-oem-osp1: ignored (reached end-of-life)
eoan_linux-oem-osp1: released (5.0.0-1039.44)
focal_linux-oem-osp1: DNE
devel_linux-oem-osp1: DNE

Patches_linux-kvm:
upstream_linux-kvm: released (5.1~rc4)
precise/esm_linux-kvm: DNE
trusty_linux-kvm: DNE
trusty/esm_linux-kvm: DNE
xenial_linux-kvm: released (4.4.0-1066.73)
esm-infra/xenial_linux-kvm: released (4.4.0-1066.73)
bionic_linux-kvm: released (4.15.0-1053.53)
disco_linux-kvm: ignored (reached end-of-life)
eoan_linux-kvm: not-affected (5.3.0-1003.3)
focal_linux-kvm: not-affected (5.4.0-1004.4)
devel_linux-kvm: not-affected (5.4.0-1004.4)

Patches_linux-aws:
upstream_linux-aws: released (5.1~rc4)
precise/esm_linux-aws: DNE
trusty_linux-aws: ignored (out of standard support)
trusty/esm_linux-aws: released (4.4.0-1062.66)
xenial_linux-aws: released (4.4.0-1102.113)
esm-infra/xenial_linux-aws: released (4.4.0-1102.113)
bionic_linux-aws: released (4.15.0-1060.62)
disco_linux-aws: ignored (reached end-of-life)
eoan_linux-aws: not-affected (5.3.0-1003.3)
focal_linux-aws: not-affected (5.4.0-1005.5)
devel_linux-aws: not-affected (5.4.0-1005.5)

Patches_linux-aws-5.0:
upstream_linux-aws-5.0: released (5.1~rc4)
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: released (5.0.0-1025.28)
disco_linux-aws-5.0: DNE
eoan_linux-aws-5.0: DNE
focal_linux-aws-5.0: DNE
devel_linux-aws-5.0: DNE

Patches_linux-aws-hwe:
upstream_linux-aws-hwe: released (5.1~rc4)
precise/esm_linux-aws-hwe: DNE
trusty_linux-aws-hwe: DNE
trusty/esm_linux-aws-hwe: DNE
xenial_linux-aws-hwe: released (4.15.0-1060.62~16.04.1)
esm-infra/xenial_linux-aws-hwe: released (4.15.0-1060.62~16.04.1)
bionic_linux-aws-hwe: DNE
disco_linux-aws-hwe: DNE
eoan_linux-aws-hwe: DNE
focal_linux-aws-hwe: DNE
devel_linux-aws-hwe: DNE

Patches_linux-azure:
upstream_linux-azure: released (5.1~rc4)
precise/esm_linux-azure: DNE
trusty_linux-azure: ignored (out of standard support)
trusty/esm_linux-azure: released (4.15.0-1071.76~14.04.1)
xenial_linux-azure: released (4.15.0-1071.76)
esm-infra/xenial_linux-azure: released (4.15.0-1071.76)
bionic_linux-azure: released (5.0.0-1032.34)
disco_linux-azure: ignored (reached end-of-life)
eoan_linux-azure: not-affected (5.3.0-1002.2)
focal_linux-azure: not-affected (5.4.0-1006.6)
devel_linux-azure: not-affected (5.4.0-1006.6)

Patches_linux-azure-5.3:
upstream_linux-azure-5.3: released (5.1~rc4)
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 (5.3.0-1007.8~18.04.1)
disco_linux-azure-5.3: DNE
eoan_linux-azure-5.3: DNE
focal_linux-azure-5.3: DNE
devel_linux-azure-5.3: DNE

Patches_linux-azure-edge:
upstream_linux-azure-edge: released (5.1~rc4)
precise/esm_linux-azure-edge: DNE
trusty_linux-azure-edge: DNE
trusty/esm_linux-azure-edge: DNE
xenial_linux-azure-edge: ignored (was needs-triage now end-of-life)
bionic_linux-azure-edge: ignored (was needs-triage now end-of-life)
disco_linux-azure-edge: DNE
eoan_linux-azure-edge: DNE
focal_linux-azure-edge: DNE
devel_linux-azure-edge: DNE

Patches_linux-gcp:
upstream_linux-gcp: released (5.1~rc4)
precise/esm_linux-gcp: DNE
trusty_linux-gcp: DNE
trusty/esm_linux-gcp: DNE
xenial_linux-gcp: released (4.15.0-1055.59)
esm-infra/xenial_linux-gcp: released (4.15.0-1055.59)
bionic_linux-gcp: released (5.0.0-1031.32)
disco_linux-gcp: ignored (reached end-of-life)
eoan_linux-gcp: not-affected (5.3.0-1003.3)
focal_linux-gcp: not-affected (5.4.0-1005.5)
devel_linux-gcp: not-affected (5.4.0-1005.5)

Patches_linux-gcp-5.3:
upstream_linux-gcp-5.3: released (5.1~rc4)
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 (5.3.0-1008.9~18.04.1)
disco_linux-gcp-5.3: DNE
eoan_linux-gcp-5.3: DNE
focal_linux-gcp-5.3: DNE
devel_linux-gcp-5.3: DNE

Patches_linux-gcp-edge:
upstream_linux-gcp-edge: released (5.1~rc4)
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: ignored (was needs-triage now end-of-life)
disco_linux-gcp-edge: DNE
eoan_linux-gcp-edge: DNE
focal_linux-gcp-edge: DNE
devel_linux-gcp-edge: DNE

Patches_linux-gke-4.15:
upstream_linux-gke-4.15: released (5.1~rc4)
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: released (4.15.0-1052.55)
disco_linux-gke-4.15: DNE
eoan_linux-gke-4.15: DNE
focal_linux-gke-4.15: DNE
devel_linux-gke-4.15: DNE

Patches_linux-gke-5.0:
upstream_linux-gke-5.0: released (5.1~rc4)
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: released (5.0.0-1030.31)
disco_linux-gke-5.0: DNE
eoan_linux-gke-5.0: DNE
focal_linux-gke-5.0: DNE
devel_linux-gke-5.0: DNE

Patches_linux-oracle:
upstream_linux-oracle: released (5.1~rc4)
precise/esm_linux-oracle: DNE
trusty_linux-oracle: DNE
trusty/esm_linux-oracle: DNE
xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
esm-infra/xenial_linux-oracle: released (4.15.0-1033.36~16.04.1)
bionic_linux-oracle: released (4.15.0-1033.36)
disco_linux-oracle: ignored (reached end-of-life)
eoan_linux-oracle: not-affected (5.3.0-1002.2)
focal_linux-oracle: not-affected (5.4.0-1005.5)
devel_linux-oracle: not-affected (5.4.0-1005.5)

Patches_linux-oracle-5.0:
upstream_linux-oracle-5.0: released (5.1~rc4)
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: released (5.0.0-1011.16)
disco_linux-oracle-5.0: DNE
eoan_linux-oracle-5.0: DNE
focal_linux-oracle-5.0: DNE
devel_linux-oracle-5.0: DNE

Patches_linux-raspi2:
upstream_linux-raspi2: released (5.1~rc4)
precise/esm_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
xenial_linux-raspi2: released (4.4.0-1129.138)
bionic_linux-raspi2: released (4.15.0-1055.59)
disco_linux-raspi2: ignored (reached end-of-life)
eoan_linux-raspi2: not-affected (5.3.0-1005.6)
focal_linux-raspi2: not-affected (5.4.0-1004.4)
devel_linux-raspi2: not-affected (5.4.0-1004.4)

Patches_linux-snapdragon:
upstream_linux-snapdragon: released (5.1~rc4)
precise/esm_linux-snapdragon: DNE
trusty_linux-snapdragon: DNE
trusty/esm_linux-snapdragon: DNE
xenial_linux-snapdragon: released (4.4.0-1133.141)
bionic_linux-snapdragon: released (4.15.0-1072.79)
disco_linux-snapdragon: ignored (reached end-of-life)
eoan_linux-snapdragon: DNE
focal_linux-snapdragon: DNE
devel_linux-snapdragon: DNE

Patches_linux-raspi2-5.3:
upstream_linux-raspi2-5.3: released (5.1~rc4)
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: not-affected (5.3.0-1017.19~18.04.1)
eoan_linux-raspi2-5.3: DNE
focal_linux-raspi2-5.3: DNE
devel_linux-raspi2-5.3: DNE

Patches_linux-oem-5.6:
upstream_linux-oem-5.6: released (5.1~rc4)
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
eoan_linux-oem-5.6: DNE
focal_linux-oem-5.6: not-affected (5.4.0-1002.4)
devel_linux-oem-5.6: not-affected (5.4.0-1002.4)

Patches_linux-gke-5.3:
upstream_linux-gke-5.3: released (5.1~rc4)
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 (5.3.0-1011.12~18.04.1)
eoan_linux-gke-5.3: DNE
focal_linux-gke-5.3: DNE
devel_linux-gke-5.3: DNE

Patches_linux-oracle-5.3:
upstream_linux-oracle-5.3: released (5.1~rc4)
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 (5.3.0-1011.12~18.04.1)
eoan_linux-oracle-5.3: DNE
focal_linux-oracle-5.3: DNE
devel_linux-oracle-5.3: DNE