CVE-2022-49950: linux kernel Memory Corruption — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on open The probe session-duplication overflow check incremented the session count also when there were no more available sessions so that memory beyond the fixed-size slab-allocated session array could be corrupted in fastrpc_session_alloc() on open().

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.1 — 5.4.213
linux	linux_kernel	5.5 — 5.10.142
linux	linux_kernel	5.11 — 5.15.66
linux	linux_kernel	5.16 — 5.19.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/5cf2a57c7a01a0d7bdecf875a63682f542891b1b https://git.kernel.org/stable/c/cf20c3533efc89578ace94fa20a9e63446223c72 https://git.kernel.org/stable/c/d245f43aab2b61195d8ebb64cef7b5a08c590ab4 https://git.kernel.org/stable/c/e0578e603065f120a8759b75e0d6c216c7078a39 https://git.kernel.org/stable/c/f8632b8bb53ebc005d8f24a68a0c1f9678c0e908

Frequently Asked Questions

What is CVE-2022-49950? +

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on open The probe session-duplication overflow check incremented the session count also when there were no more available sessions so that memory beyond the fixed-size slab-allocated session array could be corrupted in fastrpc_session_alloc() on open(). It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49950? +

CVE-2022-49950 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2022-49950? +

CVE-2022-49950 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49950? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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