Critical: nss, nss-util

Issue Overview:

An out-of-bounds write flaw was found in the way NSS performed certain Base64-decoding operations. An attacker could use this flaw to create a specially crafted certificate which, when parsed by NSS, could cause it to crash or execute arbitrary code, using the permissions of the user running an application compiled against the NSS library. (CVE-2017-5461)

Upstream acknowledges Ronald Crane as the original reporter.

Affected Packages:

nss, nss-util

Issue Correction:
Run yum update nss to update your system.
Run yum update nss-util to update your system.

New Packages:

i686:  
    nss-util-debuginfo-3.28.4-1.0.52.amzn1.i686  
    nss-util-3.28.4-1.0.52.amzn1.i686  
    nss-util-devel-3.28.4-1.0.52.amzn1.i686  
    nss-3.28.4-1.0.78.amzn1.i686  
    nss-pkcs11-devel-3.28.4-1.0.78.amzn1.i686  
    nss-debuginfo-3.28.4-1.0.78.amzn1.i686  
    nss-devel-3.28.4-1.0.78.amzn1.i686  
    nss-tools-3.28.4-1.0.78.amzn1.i686  
    nss-sysinit-3.28.4-1.0.78.amzn1.i686  
  
src:  
    nss-util-3.28.4-1.0.52.amzn1.src  
    nss-3.28.4-1.0.78.amzn1.src  
  
x86_64:  
    nss-util-3.28.4-1.0.52.amzn1.x86_64  
    nss-util-devel-3.28.4-1.0.52.amzn1.x86_64  
    nss-util-debuginfo-3.28.4-1.0.52.amzn1.x86_64  
    nss-sysinit-3.28.4-1.0.78.amzn1.x86_64  
    nss-debuginfo-3.28.4-1.0.78.amzn1.x86_64  
    nss-pkcs11-devel-3.28.4-1.0.78.amzn1.x86_64  
    nss-tools-3.28.4-1.0.78.amzn1.x86_64  
    nss-devel-3.28.4-1.0.78.amzn1.x86_64  
    nss-3.28.4-1.0.78.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-5461

Mitre: CVE-2017-5461