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Amazon Linux Local Check: ALAS-2014-418
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Amazon Linux Local Security Checks
Insight
Insight
This ALAS is superseded by ALAS-2014-419. A flaw was found in the way Bash evaluated certain specially crafted environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Certain services and applications allow remote unauthenticated attackers to provide environment variables, allowing them to exploit this issue.We'd like to also give credit to our colleagues at Red Hat for their excellent blog post summarizing this issue. This ALAS is superseded by ALAS-2014-419.
Solution
Solution
Run yum update bash to update your system.