CVE-2022-48999

high

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: Handle attempt to delete multipath route when fib_info contains an nh reference Gwangun Jung reported a slab-out-of-bounds access in fib_nh_match: fib_nh_match+0xf98/0x1130 linux-6.0-rc7/net/ipv4/fib_semantics.c:961 fib_table_delete+0x5f3/0xa40 linux-6.0-rc7/net/ipv4/fib_trie.c:1753 inet_rtm_delroute+0x2b3/0x380 linux-6.0-rc7/net/ipv4/fib_frontend.c:874 Separate nexthop objects are mutually exclusive with the legacy multipath spec. Fix fib_nh_match to return if the config for the to be deleted route contains a multipath spec while the fib_info is using a nexthop object.

References

https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32

https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2

https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883

https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133

https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e

Details

Source: Mitre, NVD

Published: 2024-10-21

Updated: 2024-10-31

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Severity: High