Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validationEach attribute inside a nested IFLA_VF_VLAN_LIST is assumed to be astruct ifla_vf_vlan_info so the size of such attribute needs to be at leastof 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 validationis not enough and a too small attribute might be cast to astruct ifla_vf_vlan_info, this might result in an out of bandsread access when accessing the saved (casted) entry in ivvl.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds