CVE-2024-42075 — Use After Free in Linux

CWE-416 — Use After Free6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
11
LinuxLinux KernelDebian Linux+8 more
Timeline
PublishedJul 29

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arena_vm_close.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages12 packages

▶NVDlinux/linux_kernel6.9.1 — 6.9.8+1
▶Debianlinux/linux_kernel< 6.9.8-1+1
▶CVEListV5linux/linux317460317a02a1af512697e6e964298dedd8a163 — 87496a1b01e8e2e399428c0db25e106f7961d01e+2

Patches

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

🔴Vulnerability Details

2
OSV
CVE-2024-42075: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena↗2024-07-29
▶
GHSA
GHSA-f2w3-phmv-5298: In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena↗2024-07-29
▶

📋Vendor Advisories

3
Red Hat
kernel: bpf: Fix remap of arena.↗2024-07-29
▶
Microsoft
bpf: Fix remap of arena.↗2024-07-09
▶
Debian
CVE-2024-42075: linux - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re...↗2024
▶