Medium: openssl11

Issue Overview:

It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to force an application into calling openssl function with a specially crafted, non-NUL terminated string to deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data confidentiality and system availability. (CVE-2021-3712)

Affected Packages:

openssl11

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update openssl11 to update your system.

New Packages:

aarch64:  
    openssl11-1.1.1g-12.amzn2.0.4.aarch64  
    openssl11-libs-1.1.1g-12.amzn2.0.4.aarch64  
    openssl11-devel-1.1.1g-12.amzn2.0.4.aarch64  
    openssl11-static-1.1.1g-12.amzn2.0.4.aarch64  
    openssl11-debuginfo-1.1.1g-12.amzn2.0.4.aarch64  
  
i686:  
    openssl11-1.1.1g-12.amzn2.0.4.i686  
    openssl11-libs-1.1.1g-12.amzn2.0.4.i686  
    openssl11-devel-1.1.1g-12.amzn2.0.4.i686  
    openssl11-static-1.1.1g-12.amzn2.0.4.i686  
    openssl11-debuginfo-1.1.1g-12.amzn2.0.4.i686  
  
src:  
    openssl11-1.1.1g-12.amzn2.0.4.src  
  
x86_64:  
    openssl11-1.1.1g-12.amzn2.0.4.x86_64  
    openssl11-libs-1.1.1g-12.amzn2.0.4.x86_64  
    openssl11-devel-1.1.1g-12.amzn2.0.4.x86_64  
    openssl11-static-1.1.1g-12.amzn2.0.4.x86_64  
    openssl11-debuginfo-1.1.1g-12.amzn2.0.4.x86_64  

Additional References

Red Hat: CVE-2021-3712

Mitre: CVE-2021-3712