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NewStart CGSL MAIN 4.05 : bash Multiple Vulnerabilities (NS-SA-2019-0108)

Description

The remote NewStart CGSL host, running version MAIN 4.05, has bash packages installed that are affected by multiple vulnerabilities: - A denial of service flaw was found in the way bash handled popd commands. A poorly written shell script could cause bash to crash resulting in a local denial of service limited to a specific bash session. (CVE-2016-9401) - An arbitrary command injection flaw was found in the way bash processed the SHELLOPTS and PS4 environment variables. A local, authenticated attacker could use this flaw to exploit poorly written setuid programs to elevate their privileges under certain circumstances. (CVE-2016-7543) - An arbitrary command injection flaw was found in the way bash processed the hostname value. A malicious DHCP server could use this flaw to execute arbitrary commands on the DHCP client machines running bash under specific circumstances. (CVE-2016-0634) Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


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