CVE-2023-28466 — NULL Pointer Dereference in Kernel

CWE-476 — NULL Pointer DereferenceCWE-416 — Use After Free31 documents8 sources
Severity
7.0HIGHNVD
OSV6.5OSV5.5OSV4.7
EPSS
0.0%
top 94.37%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
Linux KernelDebian LinuxDebian Linux+6 more
Timeline
PublishedMar 16
Latest updateAug 19

Description

do_tls_getsockopt in net/tls/tls_main.c in the Linux kernel through 6.2.6 lacks a lock_sock call, leading to a race condition (with a resultant use-after-free or NULL pointer dereference).

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages10 packages

▶NVDlinux/linux_kernel5.5 — 5.10.177+4
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-156.173+1
▶debiandebian/linux< linux 6.1.20-1 (bookworm)

Also affects: Debian Linux 10.0

Patches

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

🔴Vulnerability Details

14
OSV
linux-oem-6.0 vulnerabilities↗2023-09-19
▶
OSV
linux-azure-fde-5.15 vulnerabilities↗2023-09-06
▶
OSV
linux-azure-5.4 vulnerabilities↗2023-09-04
▶
OSV
linux-azure vulnerabilities↗2023-08-31
▶
OSV
linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities↗2023-08-31
▶

📋Vendor Advisories

15
Ubuntu
Linux kernel (OEM) vulnerabilities↗2023-09-19
▶
Ubuntu
Linux kernel (Azure CVM) vulnerabilities↗2023-09-06
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2023-09-04
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2023-08-31
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2023-08-31
▶

📄Research Papers

1
arXiv
Top of the Heap: Efficient Memory Error Protection of Safe Heap Objects↗2024-08-19
▶
CVE-2023-28466 — NULL Pointer Dereference in Kernel | cvebase