CVE-2004-1983

pax_linux - Denial of Service via arch_get_unmapped_area Infinite Loop

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2004-1983. PoCs published by Shadowinteger.

AI-analyzed exploit summary This is a proof-of-concept exploit for CVE-2004-1983, a local denial-of-service vulnerability in PaX for Linux 2.6.x kernels with ASLR enabled. It triggers an infinite loop in the kernel by manipulating the mmap system call with a specifically crafted value.

Description

The arch_get_unmapped_area function in mmap.c in the PaX patches for Linux kernel 2.6, when Address Space Layout Randomization (ASLR) is enabled, allows local users to cause a denial of service (infinite loop) via unknown attack vectors.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Shadowinteger · cdoslinux
https://www.exploit-db.com/exploits/24078

This is a proof-of-concept exploit for CVE-2004-1983, a local denial-of-service vulnerability in PaX for Linux 2.6.x kernels with ASLR enabled. It triggers an infinite loop in the kernel by manipulating the mmap system call with a specifically crafted value.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: PaX for Linux 2.6.x kernels with CONFIG_PAX_RANDMMAP
No auth needed
Prerequisites: Local access to the system · PaX with ASLR enabled on Linux 2.6.x kernel
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (6)

Core 6
Core References
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=108420555920369&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/16037
Patch x_refsource_confirm
http://pax.grsecurity.net/
Mailing List mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=108360001130312&w=2
Vendor Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-200407-02.xml
Exploit, Patch, Vendor Advisory vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/10264

Scores

EPSS 0.0093
EPSS Percentile 56.0%

Details

Status published
Products (2)
gentoo/linux 1.4
the_pax_team/pax_linux 2.6.5
Published May 02, 2004
Tracked Since Feb 18, 2026