CVE-2011-1027 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can cause a denial of service via an infinite loop in cgit by sending malformed percent-encoded strings.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2011-1027?

CVE-2011-1027 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 20 Mar 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Off-by-one error in the convert_query_hexchar function in html.c in cgit.cgi in cgit before 0.8.3.5 allows remote attackers to cause a denial of service (infinite loop) via a string composed of a % (percent) character followed by invalid hex characters, as demonstrated by a %gg sequence.

Weakness: CWE-193

Which versions are affected by CVE-2011-1027?

It affects 2 products.

Products include Fedoraproject Fedora, Lars Hjemli Cgit.

How do I fix CVE-2011-1027?

No fix has been published for CVE-2011-1027 yet. Limit exposure of the affected software until one is available.

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-2011-1027 being exploited?

There is no known exploitation of CVE-2011-1027 in the wild and no public exploit code.

All Fedoraproject Fedora vulnerabilities

Sources

Also known as GHSA-vg34-58mc-jr2w.

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