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USN-5375-1: GNU cflow vulnerability

12 April 2022

GNU cflow could be made to crash or run programs if it received specially crafted input.

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Releases

Packages

  • cflow - Analyze control flow in C source files

Details

It was discovered that GNU cflow was incorrectly handling memory cleanup
operations at the end of a compilation module. An attacker could possibly
use this issue to cause a denial of service or execute arbitrary code.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04
Ubuntu 16.04

In general, a standard system update will make all the necessary changes.

References

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Further reading