Bug 2226787 (CVE-2023-39193, ZDI-CAN-18866)
| Summary: | CVE-2023-39193 kernel: netfilter: xtables sctp out-of-bounds read in match_flags() | ||
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| Product: | [Other] Security Response | Reporter: | Mauro Matteo Cascella <mcascell> |
| Component: | vulnerability | Assignee: | Nobody <nobody> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, allarkin, bhu, chwhite, crwood, cye, dbohanno, ddepaula, debarbos, dfreiber, dvlasenk, egarver, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, nmurray, ptalbert, qzhao, rogbas, rparrazo, rrobaina, rvrbovsk, scweaver, security-response-team, sukulkar, tglozar, vkumar, walters, wcosta, williams, wmealing, ycote, ykopkova, ymankad, zhijwang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | kernel 6.6-rc1 | Doc Type: | If docs needed, set a value |
| Doc Text: |
A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.
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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: | 2227298, 2227299, 2227300, 2227301, 2242879 | ||
| Bug Blocks: | 2225771 | ||
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Description
Mauro Matteo Cascella
2023-07-26 14:20:23 UTC
ZDI security advisory: https://www.zerodayinitiative.com/advisories/ZDI-CAN-18866/ Upstream fix: https://github.com/torvalds/linux/commit/e99476497687ef9e850748fe6d232264f30bc8f9 Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2242879] This was fixed for Fedora with the 6.5.3 stable kernels This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2024:2394 https://access.redhat.com/errata/RHSA-2024:2394 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:2950 https://access.redhat.com/errata/RHSA-2024:2950 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:3138 https://access.redhat.com/errata/RHSA-2024:3138 |