CVE-2010-2156 Denial of service in n/a

What is CVE-2010-2156?

CVE-2010-2156 is a medium-severity denial of service vulnerability in n/a, published on 7 Jun 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ISC DHCP 4.1 before 4.1.1-P1 and 4.0 before 4.0.2-P1 allows remote attackers to cause a denial of service (server exit) via a zero-length client ID.

Weakness: CWE-189

Which versions are affected by CVE-2010-2156?

It affects 1 product.

Products include Isc Dhcp.

How do I fix CVE-2010-2156?

Upgrade to a fixed version.

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-2010-2156 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-2156 exists.

Public exploit code: 1 Metasploit module and 1 Exploit-DB entry.

Other vulnerabilities in n/a

• CVE-2009-0692 Memory corruption in n/a Critical 10.0
• CVE-2011-0413 Denial of service in n/a High 7.8
• CVE-2018-5732 A specially constructed response from a malicious server can cause a buffer overflow in dhclient High 7.5
• CVE-2009-1893 Path traversal in n/a Medium 6.9
• CVE-2011-4868 Null dereference in n/a Medium 6.1

Sources

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

Also known as DEBIAN-CVE-2010-2156, GHSA-rrx5-gxgm-9hrg.