CVE-2014-6229

Description

The HashContext class in hphp/runtime/ext/ext_hash.cpp in Facebook HipHop Virtual Machine (HHVM) before 3.3.0 incorrectly expects that a certain key string uses '\0' for termination, which allows remote attackers to obtain sensitive information by leveraging read access beyond the end of the string, and makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging truncation of a string containing an internal '\0' character.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.25%
Vendor Advisory hhvm.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://hhvm.com/blog/6239/hhvm-3-3-0 vendor advisory
https://github.com/facebook/hhvm/commit/7135ec229882370a00411aa50030eada6034cc1b

Frequently Asked Questions

What is the severity of CVE-2014-6229?
CVE-2014-6229 has been scored as a medium severity vulnerability.
How to fix CVE-2014-6229?
To fix CVE-2014-6229, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-6229 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2014-6229 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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