CVE-2023-3772 is a NULL pointer dereference in the Linux kernel XFRM subsystem, which transforms IP packets. A local user with CAP_NET_ADMIN can trigger the vulnerable xfrm_update_ae_params() path and directly dereference a NULL pointer, resulting in a kernel crash.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
22 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability listed as fixed by a SUSE security update affecting kernel-related packages; no further technical detail is provided in the content.
A vulnerability referenced in a SUSE security update advisory; no further technical detail is provided in the content.
Kernel vulnerability referenced in a SUSE security update advisory; no per-CVE technical details are provided in the content.
Linux kernel XFRM NULL-pointer dereference in xfrm_update_ae_params.
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.