CVE-2023-46862 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference24 documents8 sources
Severity
4.7MEDIUMNVD
OSV7.8OSV7.0OSV4.9
EPSS
0.0%
top 98.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelDebian LinuxMsrc Cbl2 Kernel 5.15.143.1-1 ON CBL Mariner 2.0
Timeline
PublishedOct 29
Latest updateMar 27

Description

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6

Affected Packages5 packages

▶Debianlinux/linux_kernel< 5.10.205-2+3
▶Ubuntulinux/linux_kernel< 5.15.0-100.110
▶debiandebian/linux< linux 6.1.64-1 (bookworm)

Patches

Patch: bugzilla.kernel.org ↗Patch: github.com ↗Patch: bugzilla.kernel.org ↗

🔴Vulnerability Details

11
OSV
linux-intel-iotg, linux-intel-iotg-5.15 vulnerabilities↗2024-03-27
▶
OSV
linux-aws, linux-aws-5.15 vulnerabilities↗2024-03-20
▶
OSV
linux-kvm vulnerabilities↗2024-03-20
▶
OSV
linux-oracle, linux-oracle-5.15 vulnerabilities↗2024-03-19
▶
OSV
linux-lowlatency, linux-raspi vulnerabilities↗2024-03-13
▶

📋Vendor Advisories

11
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities↗2024-03-27
▶
Ubuntu
Linux kernel (AWS) vulnerabilities↗2024-03-20
▶
Ubuntu
Linux kernel (KVM) vulnerabilities↗2024-03-20
▶
Ubuntu
Linux kernel (Oracle) vulnerabilities↗2024-03-19
▶
Ubuntu
Linux kernel vulnerabilities↗2024-03-13
▶

💬Community

1
Bugzilla
CVE-2023-46862 kernel: NULL pointer dereference vulnerability in io_uring_show_fdinfo↗2023-10-30
▶
CVE-2023-46862 — NULL Pointer Dereference in Linux | cvebase