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Ubuntu 16.04 ESM USN-5770-1 High: GCC Random Number Generation Issue

ubuntu
Calendar Grey December 8, 2022
Dist Ubuntu Esm H88
Attention regarding GCC random number generator vulnerabilities in Ubuntu 16.04 ESM security advisory, outlining necessary software updates and mitigation strategies.
GNU Compiler Collection's (GCC) random number generation could be made less random with specially crafted input.

Summary

GNU Compiler Collection's (GCC) random number generation could be

made less random with specially crafted input.

Software Description:

- gcc-5: GNU C compiler

- gccgo-6: GNU Go compiler

Details:

Todd Eisenberger discovered that certain versions of GNU Compiler

Collection (GCC) could be made to clobber the status flag of RDRAND

and RDSEED with specially crafted input. This could potentially lead

to less randomness in random number generation.

Topics%20covered

Topics Covered

security advisory software update Ubuntu high gcc random number generation randomness

Update Instructions

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

Ubuntu 16.04 ESM:
g++-5 5.4.0-6ubuntu1~16.04.12+esm2
gcc-5 5.4.0-6ubuntu1~16.04.12+esm2
gccgo-5 5.4.0-6ubuntu1~16.04.12+esm2
gccgo-6 6.0.1-0ubuntu1+esm1
gcj-5 5.4.0-6ubuntu1~16.04.12+esm2
gcj-5-jdk 5.4.0-6ubuntu1~16.04.12+esm2
gcj-5-jre-headless 5.4.0-6ubuntu1~16.04.12+esm2
gdc-5 5.4.0-6ubuntu1~16.04.12+esm2
gfortran-5 5.4.0-6ubuntu1~16.04.12+esm2
gnat-5 5.4.0-6ubuntu1~16.04.12+esm2

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

References

https://ubuntu.com/security/notices/USN-5770-1

CVE-2017-11671

December 08, 2022

Topics%20covered

Topics Covered

security advisory software update Ubuntu high gcc random number generation randomness

Package Information

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