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CVE-2023-52700 is a flaw in the Linux kernel Transparent Inter-Process Communication (TIPC) subsystem when constructing connection-control SYN or ACK messages that contain no payload. The TIPC send path initializes an iov_iter without the correct copy direction from the iterator's perspective. Iterator sanity checks introduced by an earlier kernel change detect this invalid state when the message-building path attempts to copy from the iterator, producing a kernel warning and stack trace. The fix initializes the iterator with the proper direction for empty SYN and ACK transmissions.
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What an attacker gets, and what they’ve been doing with it.
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No public exploit code observed for this vulnerability.
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Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A kernel warning condition in the Linux kernel TIPC implementation when sending SYN messages.
Linux kernel TIPC SYN-message handling vulnerability.
Linux kernel TIPC flaw that can trigger a kernel warning when sending SYN messages.
Linux kernel TIPC SYN-message handling flaw.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.