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PUBLISHED

CVE-2024-36017

rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation

Reserved:2024-05-17
Published:2024-05-30
Updated:2024-06-10

Description

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation Each attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be a struct ifla_vf_vlan_info so the size of such attribute needs to be at least of sizeof(struct ifla_vf_vlan_info) which is 14 bytes. The current size validation in do_setvfinfo is against NLA_HDRLEN (4 bytes) which is less than sizeof(struct ifla_vf_vlan_info) so this validation is not enough and a too small attribute might be cast to a struct ifla_vf_vlan_info, this might result in an out of bands read access when accessing the saved (casted) entry in ivvl.

Product status

Default status
unaffected

79aab093a0b5 before 8ac69ff2d0d5
affected

79aab093a0b5 before 5e7ef2d88666
affected

79aab093a0b5 before 6c8f44b02500
affected

79aab093a0b5 before f3c1bf3054f9
affected

79aab093a0b5 before 6e4c7193954f
affected

79aab093a0b5 before 206003c748b8
affected

79aab093a0b5 before 4a4b9757789a
affected

79aab093a0b5 before 1aec77b2bb2e
affected

Default status
affected

4.9
affected

Any version before 4.9
unaffected

4.19.314
unaffected

5.4.276
unaffected

5.10.217
unaffected

5.15.159
unaffected

6.1.91
unaffected

6.6.31
unaffected

6.8.10
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/8ac69ff2d0d5be9734c4402de932aa3dc8549c1a

https://git.kernel.org/stable/c/5e7ef2d88666a0212db8c38e6703864b9ce70169

https://git.kernel.org/stable/c/6c8f44b02500c7d14b5e6618fe4ef9a0da47b3de

https://git.kernel.org/stable/c/f3c1bf3054f96ddeab0621d920445bada769b40e

https://git.kernel.org/stable/c/6e4c7193954f4faab92f6e8d88bc5565317b44e7

https://git.kernel.org/stable/c/206003c748b88890a910ef7142d18f77be57550b

https://git.kernel.org/stable/c/4a4b9757789a1551d2df130df23bfb3545bfa7e8

https://git.kernel.org/stable/c/1aec77b2bb2ed1db0f5efc61c4c1ca3813307489

cve.org CVE-2024-36017

nvd.nist.gov CVE-2024-36017

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