CVE-2020-10942 — Out-of-bounds Write in Kernel

CWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-20 — Improper Input Validation18 documents10 sources
Severity
5.3MEDIUMNVD
OSV7.5OSV4.7
EPSS
0.1%
top 77.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelCanonical Ubuntu LinuxDebian Linux+1 more
Timeline
PublishedMar 24
Latest updateMay 24

Description

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:HExploitability: 1.0 | Impact: 4.2

Affected Packages4 packages

▶NVDlinux/linux_kernel< 5.5.8
▶Debianlinux/linux_kernel< 5.5.13-1+3
▶Ubuntulinux/linux_kernel< 4.4.0-179.209+1
▶NVDopensuse/leap15.1

Also affects: Debian Linux 10.0, 8.0, 9.0, Ubuntu Linux 14.04, 16.04, 18.04, 19.10

Patches

Patch: git.kernel.org ↗Patch: lkml.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

8
GHSA
GHSA-m7p8-8c8g-qwrv: In the Linux kernel before 5↗2022-05-24
▶
Kernel
fortify: Detect struct member overflows in memcpy() at compile-time↗2021-04-20
▶
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities↗2020-05-19
▶
OSV
linux, linux-aws, linux-azure, linux-azure-5.3, linux-gcp, linux-gcp-5.3, linux-gke-5.3, linux-hwe, linux-kvm, linux-oracle, linux-oracle-5.3, linux-raspi2, linux-raspi2-5.3 vulnerabilities↗2020-04-30
▶
OSV
linux-gke-5.0, linux-oem-osp11 vulnerabilities↗2020-04-28
▶

📋Vendor Advisories

7
Ubuntu
Linux kernel vulnerabilities↗2020-05-19
▶
Ubuntu
Linux kernel vulnerabilities↗2020-04-30
▶
Ubuntu
Linux kernel vulnerabilities↗2020-04-28
▶
Ubuntu
Linux kernel vulnerabilities↗2020-04-28
▶
Red Hat
kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field↗2020-03-22
▶

💬Community

2
Bugzilla
CVE-2020-10942 kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field↗2020-03-26
▶
Bugzilla
CVE-2020-10942 kernel: in get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field [fedora-all]↗2020-03-26
▶
CVE-2020-10942 — Out-of-bounds Write in Linux Kernel | cvebase