CVE-2022-36946
First published: Tue Jul 26 2022(Updated: )
A Linux Kernel flaw found in the net/netfilter/nfnetlink_queue.c. If local user creates netfilter rule that truncates the packet below the header size, the skb_pull() will result in a malformed skb (skb->len < 0). As result, denial of service could happen after incorrect check in nfqnl_mangle function. Fixes: 7af4cc3fa158 ("[NETFILTER]: Add "nfnetlink_queue" netfilter queue handler over nfnetlink") Reference: <a href="https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/">https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/</a>
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-rt | <0:4.18.0-425.3.1.rt7.213.el8 | 0:4.18.0-425.3.1.rt7.213.el8 |
| redhat/kernel | <0:4.18.0-425.3.1.el8 | 0:4.18.0-425.3.1.el8 |
| redhat/kernel | <0:5.14.0-162.6.1.el9_1 | 0:5.14.0-162.6.1.el9_1 |
| redhat/kernel-rt | <0:5.14.0-162.6.1.rt21.168.el9_1 | 0:5.14.0-162.6.1.rt21.168.el9_1 |
| redhat/Kernel | <5.18.16 | 5.18.16 |
| Linux Linux kernel | >=2.6.14<4.9.326 | |
| Linux Linux kernel | >=4.10<4.14.291 | |
| Linux Linux kernel | >=4.15<4.19.255 | |
| Linux Linux kernel | >=4.20<5.4.209 | |
| Linux Linux kernel | >=5.5<5.10.135 | |
| Linux Linux kernel | >=5.11<5.15.59 | |
| Linux Linux kernel | >=5.16<5.18.16 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | ||
| Netapp Solidfire \& Hci Management Node | ||
| Netapp Solidfire \& Hci Storage Node | ||
| Netapp Solidfire Enterprise Sds | ||
| Netapp Hci Compute Node | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.12.5-1 |
Remedy
To mitigate this issue, prevent the module nfnetlink_queue from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blocklist a kernel module to prevent it from loading automatically.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-36946 https://nvd.nist.gov/vuln/detail/CVE-2022-36946 https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/
- https://bugzilla.redhat.com/show_bug.cgi?id=2115278
- https://access.redhat.com/errata/RHSA-2022:7444
- https://access.redhat.com/errata/RHSA-2022:7683
- https://access.redhat.com/errata/RHSA-2022:8267
- https://access.redhat.com/errata/RHSA-2022:7933
- https://access.redhat.com/security/cve/cve-2022-36946
- https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2116157
- https://access.redhat.com/errata/RHSA-2024:0724
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2
- https://www.debian.org/security/2022/dsa-5207
- https://security.netapp.com/advisory/ntap-20220901-0007/
- https://lists.debian.org/debian-lts-announce/2022/09/msg00011.html
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
- https://launchpad.net/bugs/cve/CVE-2022-36946
- https://marc.info/?l=netfilter-devel&m=165883202007292&w=2
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-36946
- https://nvd.nist.gov/vuln/detail/CVE-2022-36946
- https://security-tracker.debian.org/tracker/CVE-2022-36946
- https://ubuntu.com/security/CVE-2022-36946
- https://git.kernel.org/linus/99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- agent/remedy
- agent/severity
- agent/description
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-36946
- agent/software-canonical-lookup
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-index
- agent/author
- agent/references
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/softwarecombine
- agent/event
- collector/usn-cve
- source/Ubuntu
- collector/nvd-cve
- collector/security-tracker-debian
- source/Debian
- agent/trending
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.14
- version/linux linux kernel/4.10
- version/linux linux kernel/4.15
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5
- version/linux linux kernel/5.11
- version/linux linux kernel/5.16
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- version/debian debian linux/11.0
- vendor/netapp
- canonical/netapp active iq unified manager vmware vsphere
- canonical/netapp solidfire \& hci management node
- canonical/netapp solidfire \& hci storage node
- canonical/netapp solidfire enterprise sds
- canonical/netapp hci compute node
- package-manager/debian