CVE-2003-0985

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2004-01-20 · updated 2026-06-16

Description

The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to create a zero length VMA, a different vulnerability than CAN-2004-0077.

Affected products

Linux kernel: 2.4.0, 2.4.0-test1, 2.4.0-test10, 2.4.0-test11, 2.4.0-test12, 2.4.0-test2 (+47)

References

http://archives.neohapsis.com/archives/bugtraq/2004-01/0070.html
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000799
http://download.immunix.org/ImmunixOS/7.3/updates/IMNX-2004-73-001-01
http://isec.pl/vulnerabilities/isec-0013-mremap.txt
http://klecker.debian.org/~joey/security/kernel/patches/patch.CAN-2005-0528.mremap
http://marc.info/?l=bugtraq&m=107332754521495&w=2
http://marc.info/?l=bugtraq&m=107332782121916&w=2
http://marc.info/?l=bugtraq&m=107340358402129&w=2
http://marc.info/?l=bugtraq&m=107340814409017&w=2
http://marc.info/?l=bugtraq&m=107350348418373&w=2
http://marc.info/?l=bugtraq&m=107394143105081&w=2

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