Bug 2235470 (CVE-2023-4569)

Summary: CVE-2023-4569 kernel: information leak in nft_set_catchall_flush in net/netfilter/nf_tables_api.c
Product: [Other] Security Response Reporter: Rohit Keshri <rkeshri>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, jburrell, rogbas, vkumar
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Fixed In Version: Kernel 6.5-rc7 Doc Type: If docs needed, set a value
Doc Text:
A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which can result in a memory leak.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2235471    

Description Rohit Keshri 2023-08-28 19:29:47 UTC
A memory leak problem was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux Kernel. This flaw may allow a local attacker cause a double-deactivations of catchall elements which then results in memory leak problem.

Refer:
https://patchwork.ozlabs.org/project/netfilter-devel/patch/20230812110526.49808-1-fw@strlen.de/