CVE-2019-8956

In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
flexeraCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 78%
VendorProductVersion
linuxlinux_kernel
4.17 ≤
𝑥
< 4.19.21
linuxlinux_kernel
4.20 ≤
𝑥
< 4.20.8
canonicalubuntu_linux
18.04
canonicalubuntu_linux
18.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
stretch
not-affected
jessie
not-affected
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
cosmic
Fixed 4.18.0-17.18
released
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws
cosmic
Fixed 4.18.0-1012.14
released
bionic
not-affected
xenial
not-affected
trusty
not-affected
linux-aws-hwe
cosmic
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-azure
cosmic
Fixed 4.18.0-1014.14
released
bionic
Fixed 4.18.0-1014.14~18.04.1
released
xenial
not-affected
trusty
not-affected
linux-azure-edge
cosmic
dne
bionic
Fixed 4.18.0-1014.14~18.04.1
released
xenial
not-affected
trusty
dne
linux-euclid
cosmic
dne
bionic
dne
xenial
not-affected
trusty
dne
linux-flo
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-gcp
cosmic
Fixed 4.18.0-1008.9
released
bionic
not-affected
xenial
not-affected
trusty
dne
linux-gcp-edge
cosmic
dne
bionic
Fixed 4.18.0-1008.9~18.04.1
released
xenial
dne
trusty
dne
linux-gke
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-goldfish
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-grouper
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-hwe
cosmic
dne
bionic
Fixed 4.18.0-17.18~18.04.1
released
xenial
not-affected
trusty
dne
linux-hwe-edge
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
linux-kvm
cosmic
Fixed 4.18.0-1009.9
released
bionic
not-affected
xenial
not-affected
trusty
dne
linux-lts-trusty
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-utopic
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-vivid
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-wily
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
cosmic
dne
bionic
dne
xenial
dne
trusty
not-affected
linux-maguro
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-mako
cosmic
dne
bionic
dne
xenial
ignored
trusty
dne
linux-manta
cosmic
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem
cosmic
not-affected
bionic
not-affected
xenial
ignored
trusty
dne
linux-oracle
cosmic
not-affected
bionic
not-affected
xenial
not-affected
trusty
dne
linux-raspi2
cosmic
Fixed 4.18.0-1011.13
released
bionic
not-affected
xenial
not-affected
trusty
dne
linux-snapdragon
cosmic
dne
bionic
not-affected
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0
https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/
https://support.f5.com/csp/article/K12671141
https://usn.ubuntu.com/3930-1/
https://usn.ubuntu.com/3930-2/
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0
https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/
https://support.f5.com/csp/article/K12671141
https://usn.ubuntu.com/3930-1/
https://usn.ubuntu.com/3930-2/