CVE-2012-2248 Path traversal in isc-dhcp

What is CVE-2012-2248?

CVE-2012-2248 is a high-severity path traversal vulnerability in Debian Debian Linux, published on 27 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in dhclient 4.3.1-6 due to an embedded path variable.

Weakness: CWE-20

Which versions are affected by CVE-2012-2248?

It affects 2 products.

Products include Debian Debian Linux, Dhclient Project Dhclient.

How do I fix CVE-2012-2248?

Apply the vendor's patch.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2012-2248 being exploited?

There is no known exploitation of CVE-2012-2248 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

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• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

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

Also known as DEBIAN-CVE-2012-2248, GHSA-vjmm-c66p-33gm.