CVE-2023-3567

CWE-416 — Use After FreeCWE-362 — Race Condition13 documents8 sources
Severity
7.1HIGH
EPSS
0.0%
top 99.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux Linux KernelCanonical Ubuntu LinuxRedhat Enterprise Linux
Timeline
PublishedJul 24
Latest updateNov 28

Description

A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages2 packages

▶NVDlinux/linux_kernel< 6.2.0+1
▶Debianlinux< 5.10.178-1+3

Also affects: Ubuntu Linux 14.04, 16.04, 18.04, 20.04, 22.04, Enterprise Linux 8.0, 9.0

Patches

Patch: www.spinics.net ↗Patch: www.spinics.net ↗

🔴Vulnerability Details

3
GHSA
GHSA-cgvp-6hhh-fqwh: A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen↗2023-07-24
▶
OSV
CVE-2023-3567: A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen↗2023-07-24
▶
CVEList
Kernel: use after free in vcs_read in drivers/tty/vt/vc_screen.c due to race↗2023-07-24
▶

📋Vendor Advisories

8
Ubuntu
Kernel Live Patch Security Notice↗2023-11-28
▶
Ubuntu
Kernel Live Patch Security Notice↗2023-10-10
▶
Ubuntu
Linux kernel vulnerabilities↗2023-09-06
▶
Ubuntu
Linux kernel (KVM) vulnerabilities↗2023-08-31
▶
Ubuntu
Linux kernel vulnerabilities↗2023-08-28
▶
CVE-2023-3567 (HIGH CVSS 7.1) | A use-after-free flaw was found in | cvebase.io