CVE-2024-1086
Act now ● On CISA KEV — actively exploited used in ransomware
Actively exploited — on the CISA KEV list.
CVSS base
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
28.1%
98.0th percentile
CISA KEV
Listed
Added 2024-05-30 · patch by 2024-06-20
Weakness / dates
CWE-416
Published 2024-01-31 · modified 2026-08-07
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | H | High |
Timeline
- 2024-01-31 — Published (NVD)
- 2024-05-30 — Added to CISA KEV (actively exploited)
- 2024-06-20 — CISA patch-by deadline
- 2026-08-07 — Last modified (NVD)
Description
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.
Affected
References
- http://www.openwall.com/lists/oss-security/2024/04/10/22
- http://www.openwall.com/lists/oss-security/2024/04/10/23
- exploit http://www.openwall.com/lists/oss-security/2024/04/14/1
- http://www.openwall.com/lists/oss-security/2024/04/15/2
- exploit http://www.openwall.com/lists/oss-security/2024/04/17/5
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660
- exploit https://github.com/Notselwyn/CVE-2024-1086
- https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/
- https://news.ycombinator.com/item?id=39828424
- exploit https://pwning.tech/nftables/
- https://security.netapp.com/advisory/ntap-20240614-0009/
- http://www.openwall.com/lists/oss-security/2024/04/10/22
- http://www.openwall.com/lists/oss-security/2024/04/10/23
- exploit http://www.openwall.com/lists/oss-security/2024/04/14/1
- http://www.openwall.com/lists/oss-security/2024/04/15/2
- exploit http://www.openwall.com/lists/oss-security/2024/04/17/5
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660
- exploit https://github.com/Notselwyn/CVE-2024-1086
- https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/
- https://news.ycombinator.com/item?id=39828424
- exploit https://pwning.tech/nftables/
- https://security.netapp.com/advisory/ntap-20240614-0009/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-1086