CVE-2024-1086: Use-after-free in Linux kernel's netfilter: nf_tables component
In CISA’s Known Exploited Vulnerabilities catalog: Linux Kernel Use-After-Free Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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.
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · CWE-416
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
linux: linux_kernelLinux: Kernel
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- github.com/Notselwyn/CVE-2024-1086 (opens in new tab)
- git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (opens in new tab)
- kernel.dance/f342de4e2f33e0e39165d8639387aa6c19dff660 (opens in new tab)
- lists.debian.org/debian-lts-announce/2024/06/msg00016.html (opens in new tab)
- lists.debian.org/debian-lts-announce/2024/06/msg00020.html (opens in new tab)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LSPIO… (opens in new tab)
- news.ycombinator.com/item (opens in new tab)
- pwning.tech/nftables/ (opens in new tab)
- security.netapp.com/advisory/ntap-20240614-0009/ (opens in new tab)
- www.openwall.com/lists/oss-security/2024/04/10/22 (opens in new tab)
- www.openwall.com/lists/oss-security/2024/04/10/23 (opens in new tab)
- www.openwall.com/lists/oss-security/2024/04/14/1 (opens in new tab)
- www.openwall.com/lists/oss-security/2024/04/15/2 (opens in new tab)
- www.openwall.com/lists/oss-security/2024/04/17/5 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)