vulnerability
Ubuntu: (CVE-2022-48999): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:L/AC:L/Au:S/C:C/I:N/A:C) | Oct 21, 2024 | Nov 19, 2024 | Sep 1, 2025 |
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.
Solutions
References
- CVE-2022-48999
- https://attackerkb.com/topics/CVE-2022-48999
- CWE-125
- URL-https://git.kernel.org/linus/61b91eb33a69c3be11b259c5ea484505cd79f883
- URL-https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e
- URL-https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133
- URL-https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883
- URL-https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2
- URL-https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32
- URL-https://www.cve.org/CVERecord?id=CVE-2022-48999
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