CVE-2023-1195 — Use After Free in Kernel

CWE-416 — Use After Free9 documents7 sources
Severity
5.5MEDIUMNVD
OSV8.8
EPSS
0.0%
top 95.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
Linux KernelDebian LinuxMsrc Cbl2 Kernel 5.15.112.1-2 ON CBL Mariner 2.0+3 more
Timeline
PublishedMay 18
Latest updateMay 19

Description

A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL, leading to an invalid pointer request.

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 Packages8 packages

▶NVDlinux/linux_kernel< 6.1+1
▶Debianlinux/linux_kernel< 6.1.4-1+2
▶CVEListV5linux/linux_kernelprior to kernel 6.1 rc3
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-rg37-q82v-wrqv: A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect↗2023-05-19
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OSV
CVE-2023-1195: A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect↗2023-05-18
▶
OSV
linux-hwe-5.19 vulnerabilities↗2023-03-28
▶

📋Vendor Advisories

5
Microsoft
A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/connect.c in the Linux kernel. The issue occurs when it forgets to set the free pointer server->hostname to NULL leading t↗2023-05-09
▶
Ubuntu
Linux kernel (HWE) vulnerabilities↗2023-03-28
▶
Ubuntu
Linux kernel vulnerabilities↗2023-03-23
▶
Debian
CVE-2023-1195: linux - A use-after-free flaw was found in reconn_set_ipaddr_from_hostname in fs/cifs/co...↗2023
▶
Red Hat
kernel: use-after-free caused by invalid pointer hostname in fs/cifs/connect.c↗2022-10-02
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CVE-2023-1195 — Use After Free in Linux Kernel | cvebase