Important: mercurial

Issue Overview:

A shell command injection flaw related to the handling of “ssh” URLs has been discovered in Mercurial. This can be exploited to execute shell commands with the privileges of the user running the Mercurial client, for example, when performing a “checkout” or “update” action on a sub-repository within a malicious repository or a legitimate repository containing a malicious commit. (CVE-2017-1000116)

A vulnerability was found in the way Mercurial handles path auditing and caches the results. An attacker could abuse a repository with a series of commits mixing symlinks and regular files/directories to trick Mercurial into writing outside of a given repository. (CVE-2017-1000115)

Affected Packages:

mercurial

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

New Packages:

i686:  
    mercurial-common-4.2.3-1.29.amzn1.i686  
    emacs-mercurial-4.2.3-1.29.amzn1.i686  
    mercurial-python26-4.2.3-1.29.amzn1.i686  
    mercurial-debuginfo-4.2.3-1.29.amzn1.i686  
    mercurial-python27-4.2.3-1.29.amzn1.i686  
    emacs-mercurial-el-4.2.3-1.29.amzn1.i686  
  
src:  
    mercurial-4.2.3-1.29.amzn1.src  
  
x86_64:  
    mercurial-python27-4.2.3-1.29.amzn1.x86_64  
    emacs-mercurial-4.2.3-1.29.amzn1.x86_64  
    mercurial-debuginfo-4.2.3-1.29.amzn1.x86_64  
    mercurial-common-4.2.3-1.29.amzn1.x86_64  
    mercurial-python26-4.2.3-1.29.amzn1.x86_64  
    emacs-mercurial-el-4.2.3-1.29.amzn1.x86_64  

Additional References

Red Hat: CVE-2017-1000115, CVE-2017-1000116

Mitre: CVE-2017-1000115, CVE-2017-1000116