CVE-2018-6340

CVSS 8.1 HIGHEPSS 1.4%CWE-125

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 1.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

31 Dec 2018Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The Memcache::getextendedstats function can be used to trigger an out-of-bounds read. Exploiting this issue requires control over memcached server hostnames and/or ports. This affects all supported versions of HHVM (3.30 and 3.27.4 and below).

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Facebook · HHVM

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References

https://github.com/facebook/hhvm/commit/4bff3bfbe90d10451e4638c2118d1ad1117bb3e3 https://hhvm.com/blog/2018/12/18/hhvm-3.30.1.html