What’s Vulnerable › Vulnerabilities

CVE-2004-0077

• Severity: high (CVSS 7.2 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2004-03-03 · updated 2026-06-16

Description

The do_mremap function for the mremap system call in Linux 2.2 to 2.2.25, 2.4 to 2.4.24, and 2.6 to 2.6.2, does not properly check the return value from the do_munmap function when the maximum number of VMA descriptors is exceeded, which allows local users to gain root privileges, a different vulnerability than CAN-2003-0985.

Affected products

• Linux kernel: 2.2.0, 2.2.1, 2.2.2, 2.2.3, 2.2.4, 2.2.5 (+93)
• Netwosix Linux: 1.0
• RedHat Bigmem Kernel: 2.4.20-8
• RedHat Kernel: 2.4.20-8
• RedHat Kernel Doc: 2.4.20-8
• RedHat Kernel Source: 2.4.20-8
• Trustix Secure Linux: 1.5, 2.0

References

• http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0040.html
• http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000820
• http://fedoranews.org/updates/FEDORA-2004-079.shtml
• http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:015
• http://isec.pl/vulnerabilities/isec-0014-mremap-unmap.txt
• http://marc.info/?l=bugtraq&m=107711762014175&w=2
• http://marc.info/?l=bugtraq&m=107712137732553&w=2
• http://marc.info/?l=bugtraq&m=107755871932680&w=2
• http://security.gentoo.org/glsa/glsa-200403-02.xml
• http://www.ciac.org/ciac/bulletins/o-082.shtml
• http://www.debian.org/security/2004/dsa-438
• http://www.debian.org/security/2004/dsa-439

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