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CVE-2023-3773 is an out-of-bounds read in the Linux kernel XFRM subsystem's netlink-attribute parsing for XFRMA_MTIMER_THRESH. The attribute is expected to contain an NLA_S32 value, but a privileged caller can supply it with an empty payload. Subsequent processing reads four bytes beyond the attribute payload from heap memory.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Linux kernel XFRM netlink attribute out-of-bounds read vulnerability.
Linux kernel XFRM out-of-bounds read of an XFRMA_MTIMER_THRESH netlink attribute.
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.