CVE-2006-3122 Denial of service in n/a

What is CVE-2006-3122?

CVE-2006-3122 is a medium-severity denial of service vulnerability in n/a, published on 9 Aug 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The supersede_lease function in memory.c in ISC DHCP (dhcpd) server 2.0pl5 allows remote attackers to cause a denial of service (application crash) via a DHCPDISCOVER packet with a 32 byte client-identifier, which causes the packet to be interpreted as a corrupt uid and causes the server to exit with "corrupt lease uid."

Weakness: CWE-399

Which versions are affected by CVE-2006-3122?

It affects 1 product.

Products include Isc Dhcpd.

How do I fix CVE-2006-3122?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2006-3122 being exploited?

There is no known exploitation of CVE-2006-3122 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2004-1006 Code injection in n/a Critical 10.0
• CVE-2002-0702 Code injection in n/a Critical 10.0
• CVE-2003-0026 Memory corruption in n/a High 7.5
• CVE-2019-6470 dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries Medium 6.5
• CVE-2003-0039 Denial of service in n/a Medium 5.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DSA-1143-1, GHSA-jgmg-r2qf-hx4v.