Vulnerability Details : CVE-2024-1086
Potential exploit
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.
Vulnerability category: Memory CorruptionGain privilege
Products affected by CVE-2024-1086
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:7.0_ppc64le:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0_ppc64:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0_s390x:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:c250_firmware:-:*:*:*:*:*:*:*
CVE-2024-1086 is in the CISA Known Exploited Vulnerabilities Catalog
CISA vulnerability name:
Linux Kernel Use-After-Free Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA description:
Linux kernel contains a use-after-free vulnerability in the netfilter: nf_tables component that allows an attacker to achieve local privilege escalation.
Notes:
This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit
Added on
2024-05-30
Action due date
2024-06-20
Exploit prediction scoring system (EPSS) score for CVE-2024-1086
0.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-1086
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Google Inc. | 2024-01-31 |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | 2024-02-05 |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
N/A
|
N/A
|
RedHat-CVE-2024-1086 | 2024-01-31 |
CWE ids for CVE-2024-1086
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The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- cve-coordination@google.com (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2024-1086
-
https://security.netapp.com/advisory/ntap-20240614-0009/
CVE-2024-1086 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
[SECURITY] [DLA 3841-1] linux-5.10 security updateMailing List
-
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
[SECURITY] [DLA 3840-1] linux security updateMailing List
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIOMIJYTLZB6QKPQVVAYSUETUWKPF/
[SECURITY] Fedora 39 Update: kernel-6.7.3-200.fc39 - package-announce - Fedora Mailing-ListsMailing List
-
https://news.ycombinator.com/item?id=39828424
Flipping Pages: New Linux vulnerability in nf_tables and exploitation techniques | Hacker NewsIssue Tracking
-
https://kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660
🐧🕺Patch
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http://www.openwall.com/lists/oss-security/2024/04/15/2
oss-security - Re: Linux: Disabling network namespacesMailing List
-
http://www.openwall.com/lists/oss-security/2024/04/14/1
oss-security - Linux: Disabling network namespacesExploit;Mailing List
-
http://www.openwall.com/lists/oss-security/2024/04/17/5
oss-security - Re: Linux: Disabling network namespacesExploit;Mailing List
-
http://www.openwall.com/lists/oss-security/2024/04/10/23
oss-security - Re: CVE-2024-1086: Linux: nf_tables: use-after-free vulnerability in the nft_verdict_init() functionMailing List;Patch
-
http://www.openwall.com/lists/oss-security/2024/04/10/22
oss-security - CVE-2024-1086: Linux: nf_tables: use-after-free vulnerability in the nft_verdict_init() functionMailing List;Patch
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https://github.com/Notselwyn/CVE-2024-1086
GitHub - Notselwyn/CVE-2024-1086: Universal local privilege escalation Proof-of-Concept exploit for CVE-2024-1086, working on most Linux kernels between v5.14 and v6.6, including Debian, Ubuntu, and KExploit;Third Party Advisory
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https://pwning.tech/nftables/
Flipping Pages: An analysis of a new Linux vulnerability in nf_tables and hardened exploitation techniquesExploit;Technical Description;Third Party Advisory
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f342de4e2f33e0e39165d8639387aa6c19dff660
netfilter: nf_tables: reject QUEUE/DROP verdict parameters - kernel/git/torvalds/linux.git - Linux kernel source treePatch
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