CVE-2023-52746

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() int type = nla_type(nla); if (type > XFRMA_MAX) { return -EOPNOTSUPP; } @type is then used as an array index and can be used as a Spectre v1 gadget. if (nla_len(nla) < compat_policy[type].len) { array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users.

Category

2.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.06%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0 patch
https://git.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5 patch
https://git.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12d patch
https://git.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabff patch

Frequently Asked Questions

What is the severity of CVE-2023-52746?
CVE-2023-52746 has been scored as a low severity vulnerability.
How to fix CVE-2023-52746?
To fix CVE-2023-52746, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-52746 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-52746 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-52746?
CVE-2023-52746 affects Linux Linux, Linux Linux.
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