PT-2022-5912 · Linux+5 · Linux Kernel+5
Published
2022-01-19
·
Updated
2023-08-14
·
CVE-2022-3107
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions through 5.16-rc6
Description
An issue in the Linux kernel is related to a null pointer dereference in the
netvsc get ethtool stats function in drivers/net/hyperv/netvsc drv.c. This occurs due to a lack of check of the return value of kvmalloc array(). The issue may allow an attacker to cause a denial of service or elevate privileges.Recommendations
For Linux kernel versions through 5.16-rc6, as a temporary workaround, consider disabling the
netvsc get ethtool stats function until a patch is available. Restrict access to the drivers/net/hyperv/netvsc drv.c module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Centos
Linux Kernel
Red Hat
Suse