DSA-3115-1: pyyaml - security update
Summary
DSA-3115-1: pyyaml - security update. Affects pyyaml versions < 3.10-4+deb7u1. Fixed in 3.10-4+deb7u1. How to fix ↓
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Background
pyyaml is a YAML parser and emitter for Python. It allows Python applications to easily read and write YAML data. YAML is a human-readable data serialization format commonly used for configuration files and data exchange between languages. pyyaml provides a convenient way to work with YAML in Python applications.
Vulnerability Detail
An assertion failure was discovered in the way wrapped strings are parsed in pyyaml. This vulnerability allows an attacker to crash an application that uses python-yaml by loading specially crafted YAML input. By exploiting this vulnerability, an attacker could potentially disrupt the functionality of the application or cause it to crash, leading to a denial of service (DoS) condition.
How To Fix
Minimum fixed version
3.10-4+deb7u1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade pyyamlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is necessary to upgrade the pyyaml package to the fixed version.
Conclusion
In conclusion, the pyyaml package is vulnerable to an assertion failure when parsing wrapped strings. This vulnerability can be exploited by an attacker to crash an application using python-yaml. To mitigate this issue, it is recommended to upgrade the pyyaml package to the fixed version mentioned in the 'how_to_fix' section. For further assistance or support in vulnerability remediation, please contact DevNack.com.
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FAQ
pyyaml is a YAML parser and emitter for Python. It allows Python applications to easily read and write YAML data.
YAML is a human-readable data serialization format commonly used for configuration files and data exchange between languages.
This vulnerability allows an attacker to crash an application that uses python-yaml by loading specially crafted YAML input. It can lead to a denial of service (DoS) condition.
To fix this vulnerability, you need to upgrade the pyyaml package to the fixed version. Please refer to the 'how_to_fix' section for detailed instructions.
No, there is no known workaround for this vulnerability. It is necessary to upgrade the pyyaml package to the fixed version.
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