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CVE-2024-36017

rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.19.314, 5.4.276, 5.10.217, 5.15.159, 6.1.91, and 2 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • Linux Linux

    From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 8ac69ff2d0d5be9734c4402de932aa3dc8549c1a; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 5e7ef2d88666a0212db8c38e6703864b9ce70169; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 6c8f44b02500c7d14b5e6618fe4ef9a0da47b3de; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in f3c1bf3054f96ddeab0621d920445bada769b40e; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 6e4c7193954f4faab92f6e8d88bc5565317b44e7; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 206003c748b88890a910ef7142d18f77be57550b; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 4a4b9757789a1551d2df130df23bfb3545bfa7e8; From 79aab093a0b5370d7fc4e99df75996f4744dc03f · fixed in 1aec77b2bb2ed1db0f5efc61c4c1ca3813307489

  • Linux Linux

    4.9

  • KernelLinux

    From 4.9.0 · fixed in 4.19.314; From 4.20.0 · fixed in 5.4.276; From 5.5.0 · fixed in 5.10.217; From 5.11.0 · fixed in 5.15.159; From 5.16.0 · fixed in 6.1.91; From 6.2.0 · fixed in 6.6.31; From 6.7.0 · fixed in 6.8.10

References 8

git.kernel.org