CVE-2017-17511 Command injection in n/a

What is CVE-2017-17511?

CVE-2017-17511 is a high-severity command injection vulnerability in Debian Debian Linux, published on 14 Dec 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

KildClient 3.1.0 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL, related to prefs.c and worldgui.c.

Weakness: CWE-74

Which versions are affected by CVE-2017-17511?

It affects 2 products.

Products include Debian Debian Linux, Kildclient Kildclient.

How do I fix CVE-2017-17511?

Apply the vendor's patch.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2017-17511 being exploited?

There is no known exploitation of CVE-2017-17511 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• 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-2017-17511, DLA-1210-1, GHSA-9cjh-6cvj-78v9, UBUNTU-CVE-2017-17511.