CVE-2009-1893

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-07-17 · updated 2026-06-16
Weakness: CWE-59

Description

The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file, related to the "dhcpd -t" command.

Affected products

ISC DHCP: 3.0.1-rc1, 3.0.1-rc10, 3.0.1-rc11, 3.0.1-rc12, 3.0.1-rc13, 3.0.1-rc14 (+6)
Red Hat Enterprise Linux: 3.0

References

http://secunia.com/advisories/35831
http://securitytracker.com/id?1022554
http://www.redhat.com/support/errata/RHSA-2009-1154.html
http://www.securityfocus.com/bid/35670
https://bugzilla.redhat.com/show_bug.cgi?id=510024
https://exchange.xforce.ibmcloud.com/vulnerabilities/51718
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11597
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6440
http://secunia.com/advisories/35831
http://securitytracker.com/id?1022554
http://www.redhat.com/support/errata/RHSA-2009-1154.html
http://www.securityfocus.com/bid/35670

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