Red Hat Linux uml_net utility could allow an attacker to gain privileges

linux-umlnet-gain-privileges (11276) The risk level is classified as HighHigh Risk


The uml_net utility, which is included as part of the Linux kernel-utils package, could allow a local attacker to gain root privileges.The uml_net utility is installed setuid root. A local attacker could use this vulnerability to gain root privileges on the system.


Gain Privileges


For Red Hat Linux:
Upgrade to the latest kernel-utils package (2.4-8.28 or later), as listed in RHSA-2003:056-10 for more information. See References.


  • CIAC Information Bulletin N-044: Red Hat Updated kernel-utils Packages Fix setuid Vulnerability.
  • BID-6801: Red Hat Linux User Mode Linux SetUID Installation Vulnerability
  • CVE-2003-0019: uml_net in the kernel-utils package for Red Hat Linux 8.0 has incorrect setuid root privileges, which allows local users to modify network interfaces, e.g. by modifying ARP entries or placing interfaces into promiscuous mode.
  • OSVDB ID: 4926: Red Hat Linux kernel_utils uml_net Overflow
  • RHSA-2003-056: Updated kernel-utils packages fix setuid vulnerability
  • US-CERT VU#134025: kernel-utils sets insecure permissions on uml_net utility

Platforms Affected:

  • RedHat Linux 7
  • RedHat Linux 7.1
  • RedHat Linux 7.2
  • RedHat Linux 7.3
  • RedHat Linux 8.0


Feb 07, 2003

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