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Amazon Linux Local Check: ALAS-2014-418

Information

Severity

Severity

Critical

Family

Family

Amazon Linux Local Security Checks

CVSSv2 Base

CVSSv2 Base

10.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

7 years ago

Modified

Modified

4 years ago

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This ALAS is superseded by ALAS-2014-419.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 This ALAS is superseded by ALAS-2014-419.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.

Common Vulnerabilities and Exposures (CVE)