Bug 2281704 (CVE-2024-35884)
| Summary: | CVE-2024-35884 kernel: udp: do not accept non-tunnel GSO skbs landing in a tunnel | ||
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| Product: | [Other] Security Response | Reporter: | ybuenos |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, mleitner, mmilgram, mstowell, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, scweaver, sidakwo, sukulkar, tglozar, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 5.10.215, kernel 5.15.154, kernel 6.1.85, kernel 6.6.26, kernel 6.8.5, kernel 6.9 | Doc Type: | If docs needed, set a value |
| Doc Text: |
CVE-2024-35884 highlights a flaw in the Linux kernel's handling of UDP packets when Generic Receive Offload (GRO) forwarding is enabled. The issue occurs because non-tunnel UDP packets are sometimes mistakenly processed as if they belong to a tunnel. This can lead to data corruption or kernel crashes, particularly in environments with complex network configurations or when certain tunneling protocols like Geneve are used.
The kernel's processing logic for GRO and UDP packets fails to properly differentiate between tunneled and non-tunneled packets. As a result, improperly handled packets may lead to segmentation errors or system instability.
This vulnerability affects system availability and could result in crashes or data integrity issues during packet forwarding.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 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: | 2281705 | ||
| Bug Blocks: | 2281751 | ||
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Description
ybuenos
2024-05-20 12:08:06 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2281705] The result of automatic check (that is developed by Alexander Larkin) for this CVE-2024-35884 is: CHECK Maybe valid. Check manually. with impact MODERATE (that is approximation based on flags DANGER SKB IMPROVEONLY ; these flags parsed automatically based on patche data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later. This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:7001 https://access.redhat.com/errata/RHSA-2024:7001 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:7000 https://access.redhat.com/errata/RHSA-2024:7000 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2024:8107 https://access.redhat.com/errata/RHSA-2024:8107 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2024:8161 https://access.redhat.com/errata/RHSA-2024:8161 |