CVE-2011-0703 Command injection in gksu-polkit

What is CVE-2011-0703?

CVE-2011-0703 is a critical command injection vulnerability in Debian Debian Linux, published on 15 Nov 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In gksu-polkit before 0.0.3, the source file for xauth may contain arbitrary commands that may allow an attacker to overtake an administrator X11 session.

Weakness: CWE-20

Which versions are affected by CVE-2011-0703?

It affects 2 products.

Products include Debian Debian Linux, Gksu-Polkit Project Gksu-Polkit.

How do I fix CVE-2011-0703?

No fix has been published for CVE-2011-0703 yet. Limit exposure of the affected software until one is available.

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

Is CVE-2011-0703 being exploited?

There is no known exploitation of CVE-2011-0703 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 GHSA-vrmv-52qc-xvhh.