Bug 2115278 (CVE-2022-36946)
| Summary: | CVE-2022-36946 kernel: DoS in nfqnl_mangle in net/netfilter/nfnetlink_queue.c | ||
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| Product: | [Other] Security Response | Reporter: | Alex <allarkin> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, adscvr, airlied, alciregi, bdettelb, bhu, brdeoliv, bskeggs, chwhite, crwood, ddepaula, debarbos, dhoward, dvlasenk, fhrbata, hdegoede, hkrzesin, hpa, jarod, jarodwilson, jburrell, jfaracco, jferlan, jforbes, jglisse, jlelli, joe.lawrence, jonathan, josef, jshortt, jstancek, jwboyer, jwyatt, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, lzampier, masami256, mchehab, nmurray, ptalbert, qzhao, rvrbovsk, scweaver, steved, tyberry, vkumar, walters, williams |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Kernel 5.18.16 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A memory corruption flaw was found in the Linux kernel’s Netfilter subsystem in the way a local user uses the libnetfilter_queue when analyzing a corrupted network packet. This flaw allows a local user to crash the system or a remote user to crash the system when the libnetfilter_queue is used by a local user.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-12-05 20:21:20 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2116157, 2116159, 2116160, 2116161, 2116162 | ||
| Bug Blocks: | 2111859 | ||
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2116157] This was fixed for Fedora with the 5.18.16 stable kernel update. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:7444 https://access.redhat.com/errata/RHSA-2022:7444 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2022:7683 https://access.redhat.com/errata/RHSA-2022:7683 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2022:7933 https://access.redhat.com/errata/RHSA-2022:7933 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2022:8267 https://access.redhat.com/errata/RHSA-2022:8267 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-36946 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2024:0724 https://access.redhat.com/errata/RHSA-2024:0724 |
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: https://lore.kernel.org/all/20220726104206.2036-1-fw@strlen.de/t/