CVE-2022-2153CWE-476

CVE-2022-2153

Medium · published August 31, 2022

CVSS v3.1
5.5
EPSS
0%
Percentile
39.1
In the wild
Unconfirmed
What it is

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00462 · 39.1th percentile
Weakness
CWE-476 · NULL Pointer Dereference
Published
2022-08-31T20:15Z
Affected products (7)
ProductVersionsFixed in
linux/linux_kernel< 5.185.18
fedoraproject/fedoraall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
redhat/enterprise_linuxall versions—
debian/debian_linuxall versions—
References (15)
https://bugzilla.redhat.com/show_bug.cgi?id=2069736 · [email protected]https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce · [email protected]https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a · [email protected]https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 · [email protected]https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html · [email protected]https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html · [email protected]https://www.openwall.com/lists/oss-security/2022/06/22/1 · [email protected]https://bugzilla.redhat.com/show_bug.cgi?id=2069736 · af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/00b5f37189d24ac3ed46cb7f11742094778c46ce · af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/7ec37d1cbe17d8189d9562178d8b29167fe1c31a · af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/b1e34d325397a33d97d845e312d7cf2a8b646b44 · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html · af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html · af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2022/06/22/1 · af854a3a-2127-422b-91ae-364da2661108https://cert-portal.siemens.com/productcert/html/ssa-794697.html · 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
EPSS history
Timeline
  • 31 AUG 00:00Z
    A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ
    cvelistv5