> I have installed haproxy from ubuntu repo (haproxy version : 1.5.9). > Recently Openssl security team released security patches for > vulnerability (USN-2459-1). Please let me know how to rebuild the > haproxy with newly installed Openssl version.
Don't rebuild. Just use your operating systems package manager to update openssl and then restart haproxy. If you use Ubuntu (since you quote a ubuntu security notice), you just need to "apt-get update && apt-get upgrade" and then restart haproxy. Only if haproxy is statically linked to openssl, a rebuild would be required, but then you would already know howto do it because you would have done it already in the first place. Regards, Lukas