Improper Protection Against Physical Side Channels Affecting kernel-debug package, versions *
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Test your applications- Snyk ID SNYK-RHEL7-KERNELDEBUG-7113023
- published 24 May 2024
- disclosed 21 May 2024
Introduced: 21 May 2024
CVE-2023-52746 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:7 kernel-debug.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
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.
References
- https://access.redhat.com/security/cve/CVE-2023-52746
- https://git.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12d
- https://git.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5
- https://git.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0
- https://git.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabff