#VU111447 Use-after-free in Linux kernel - CVE-2022-49986
Vulnerability identifier: #VU111447
Vulnerability risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the storvsc_probe() function in drivers/scsi/storvsc_drv.c. A local user can escalate privileges on the system.
Mitigation
Install update from vendor's repository.
Vulnerable software versions
Linux kernel: 4.19, 4.19.1, 4.19.2, 4.19.3, 4.19.4, 4.19.5, 4.19.6, 4.19.7, 4.19.8, 4.19.9, 4.19.10, 4.19.11, 4.19.12, 4.19.13, 4.19.14, 4.19.15, 4.19.16, 4.19.17, 4.19.18, 4.19.19, 4.19.20, 4.19.21, 4.19.22, 4.19.23, 4.19.24, 4.19.25, 4.19.26, 4.19.27, 4.19.28, 4.19.29, 4.19.30, 4.19.31, 4.19.32, 4.19.33, 4.19.34, 4.19.35, 4.19.36, 4.19.37, 4.19.38, 4.19.39, 4.19.40, 4.19.41, 4.19.42, 4.19.43, 4.19.44, 4.19.45, 4.19.46, 4.19.47, 4.19.48, 4.19.49, 4.19.50, 4.19.51, 4.19.52, 4.19.53, 4.19.54, 4.19.55, 4.19.56, 4.19.57, 4.19.58, 4.19.59, 4.19.60, 4.19.61, 4.19.62, 4.19.63, 4.19.64, 4.19.65, 4.19.66, 4.19.67, 4.19.68, 4.19.69, 4.19.70, 4.19.71, 4.19.72, 4.19.73, 4.19.74, 4.19.75, 4.19.76, 4.19.77, 4.19.78, 4.19.79, 4.19.80, 4.19.81, 4.19.82, 4.19.83, 4.19.84, 4.19.85, 4.19.86, 4.19.87, 4.19.88, 4.19.89, 4.19.90, 4.19.91, 4.19.92, 4.19.93, 4.19.94, 4.19.95, 4.19.96, 4.19.97, 4.19.98, 4.19.99, 4.19.100, 4.19.101, 4.19.102, 4.19.103, 4.19.104, 4.19.105, 4.19.106, 4.19.107, 4.19.108, 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External links
https://git.kernel.org/stable/c/46fcb0fc884db78a0384be92cc2a51927e6581b8
https://git.kernel.org/stable/c/828f57ac75eaccd6607ee4d1468d34e983e32c68
https://git.kernel.org/stable/c/b4c928ace9a123629eeb14ec5d7ee8f73e5ac668
https://git.kernel.org/stable/c/b692c238ddfa61f00d97c4c1f021425d132ba96f
https://git.kernel.org/stable/c/cd2a50d0a097a42b6de283377da98ff757505120
https://git.kernel.org/stable/c/d957e7ffb2c72410bcc1a514153a46719255a5da
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.257
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.140
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.64
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.212
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
