IT

Tracker / CVE-2024-38659

CVE-2024-38659

High 7.3

In the Linux kernel, the following vulnerability has been resolved: enic: Validate length of nl attributes in enic_set_vf_port enic_set_vf_port assumes that the nl attribute IFLA_PORT_PROFILE is of length PORT_PROFILE_MAX and that the nl attributes IFLA_PORT_INSTANCE_UUID, IFLA_PORT_HOST_UUID are of length PORT_UUID_MAX. These attributes are validated (in the function do_setlink in rtnetlink.c) using the nla_policy ifla_port_policy. The policy defines IFLA_PORT_PROFILE as NLA_STRING, IFLA_PORT_INSTANCE_UUID as NLA_BINARY and IFLA_PORT_HOST_UUID as NLA_STRING. That means that the length validation using the policy is for the max size of the attributes and not on exact size so the length of these attributes might be less than the sizes that enic_set_vf_port expects. This might cause an out of bands read access in the memcpys of the data of these attributes in enic_set_vf_port.

Affected products and versions

linux linux_kernel
linux linux_kernel · 2.6.35 → 4.19.316
linux linux_kernel · 4.20 → 5.4.278
linux linux_kernel · 5.11 → 5.15.161
linux linux_kernel · 5.16 → 6.1.93
linux linux_kernel · 5.5 → 5.10.219
linux linux_kernel · 6.2 → 6.6.33
linux linux_kernel · 6.7 → 6.9.4

Analysis

This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.

References