Amazon Linux AMI : glibc (ALAS-2017-877)
High Nessus Plugin ID 102865
SynopsisThe remote Amazon Linux AMI host is missing a security update.
DescriptionUnbounded stack allocation in catopen function
A stack based buffer overflow vulnerability was found in the catopen() function. An excessively long string passed to the function could cause it to crash or, potentially, execute arbitrary code.(CVE-2015-8779)
Integer overflow in hcreate and hcreate_r
An integer overflow vulnerability was found in hcreate() and hcreate_r() functions which could result in an out-of-bounds memory access. This could lead to application crash or, potentially, arbitrary code execution. (CVE-2015-8778)
Unbounded stack allocation in nan* functions
A stack overflow vulnerability was found in nan* functions that could cause applications, which process long strings with the nan function, to crash or, potentially, execute arbitrary code. (CVE-2014-9761)
LD_POINTER_GUARD in the environment is not sanitized
It was found that the dynamic loader did not sanitize the LD_POINTER_GUARD environment variable. An attacker could use this flaw to bypass the pointer guarding protection on set-user-ID or set-group-ID programs to execute arbitrary code with the permissions of the user running the application.(CVE-2015-8777)
Segmentation fault caused by passing out-of-range data to strftime()
It was found that out-of-range time values passed to the strftime() function could result in an out-of-bounds memory access. This could lead to application crash or, potentially, information disclosure.
SolutionRun 'yum update glibc' to update your system.