CVE-2022-48999

HIGH EPSS 16.7%
Published Oct 21, 20241y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
16.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.3  –  <5.4.226
linuxlinux_kernel*≥5.5  –  <5.10.158
linuxlinux_kernel*≥5.11  –  <5.15.82
linuxlinux_kernel*≥5.16  –  <6.0.12

References 5

  • git.kernel.org https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0b5394229ebae09afc07aabccb5ffd705ffd250e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/25174d91e4a32a24204060d283bd5fa6d0ddf133
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/61b91eb33a69c3be11b259c5ea484505cd79f883
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bb20a2ae241be846bc3c11ea4b3a3c69e41d51f2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cc3cd130ecfb8b0ae52e235e487bae3f16a24a32
    Patch