What’s Vulnerable › Vulnerabilities

CVE-2005-3847

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2005-11-27 · updated 2026-06-16
• Weakness: CWE-667

Description

The handle_stop_signal function in signal.c in Linux kernel 2.6.11 up to other versions before 2.6.13 and 2.6.12.6 allows local users to cause a denial of service (deadlock) by sending a SIGKILL to a real-time threaded process while it is performing a core dump.

Affected products

• Debian Linux: 3.1
• Linux kernel: from 2.6.11 before 2.6.13 — fixed in 2.6.13

How to fix

Upgrade to a fixed version: Linux kernel 2.6.13. Check the vendor advisory for mitigations.

References

• http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
• http://marc.info/?l=linux-kernel&m=112430346613450&w=2
• http://marc.info/?l=linux-kernel&m=112508422716574&w=2
• http://secunia.com/advisories/19038
• http://secunia.com/advisories/19374
• http://www.debian.org/security/2006/dsa-1017
• http://www.kernel.org/git/?p=linux/kernel/git/chrisw/stable-queue.git%3Ba=blob%3Bh=f6cc7e101c49f356e4c4df5cca1ff352a0f01dd5%3Bhb=9c5fcb99af7c157be45e9d53aeb857ded5211fcd%3Bf=2.6.12.6/nptl-signal-delivery-deadlock-fix.patch
• http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=dd12f48d4e8774415b528d3991ae47c28f26e1ac%3Bhp=ade6648b3b11a5d81f6f28135193ab6d85d621db
• http://www.securityfocus.com/bid/16856
• http://lists.suse.de/archive/suse-security-announce/2006-Feb/0010.html
• http://marc.info/?l=linux-kernel&m=112430346613450&w=2
• http://marc.info/?l=linux-kernel&m=112508422716574&w=2

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