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vulnerabilities
Researchers Demonstrate OpenBSD Root Exploit Chaining 37-Year-Old Shared-Memory Bug
Researchers chained a decades-old integer overflow vulnerability with a separate kernel flaw to achieve local root privilege escalation on OpenBSD 7.9, circumventing kernel-address randomization (KARL) and hardware protections (SMAP and SMEP). Security firm Calif disclosed the attack with a detailed writeup and proof-of-concept code after OpenBSD released patches.
Why it matters: OpenBSD system administrators and developers must patch immediately; local attackers can escalate to root, and the exploit chain demonstrates how historical bugs remain exploitable despite modern mitigations.
- Source published
- First seen by Cybersecurity Tracker