Important: procps-ng

Issue Overview:

Multiple integer overflows leading to heap corruption flaws were discovered in file2strvec(). These vulnerabilities can lead to privilege escalation for a local attacker who can create entries in procfs by starting processes, which will lead to crashes or arbitrary code execution in proc utilities run by other users (eg pgrep, pkill, pidof, w).(CVE-2018-1124)

A flaw was found where procps-ng provides wrappers for standard C allocators that took unsigned int instead of size_t parameters. On platforms where these differ (such as x86_64), this could cause integer truncation, leading to undersized regions being returned to callers that could then be overflowed. The only known exploitable vector for this issue is CVE-2018-1124.(CVE-2018-1126)

Affected Packages:

procps-ng

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 procps-ng to update your system.

New Packages:

src:  
    procps-ng-3.3.10-17.amzn2.2.src  
  
x86_64:  
    procps-ng-3.3.10-17.amzn2.2.x86_64  
    procps-ng-devel-3.3.10-17.amzn2.2.x86_64  
    procps-ng-i18n-3.3.10-17.amzn2.2.x86_64  
    procps-ng-debuginfo-3.3.10-17.amzn2.2.x86_64  

Additional References

Red Hat: CVE-2018-1124, CVE-2018-1126

Mitre: CVE-2018-1124, CVE-2018-1126