Vulnerability Details CVE-2018-6340
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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 61.8%
CVSS Severity
CVSS v3 Score 8.1
CVSS v2 Score 6.8
Products affected by CVE-2018-6340
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cpe:2.3:a:facebook:hhvm:2.2.0
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cpe:2.3:a:facebook:hhvm:2.3.0
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cpe:2.3:a:facebook:hhvm:2.3.1
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cpe:2.3:a:facebook:hhvm:2.3.2
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cpe:2.3:a:facebook:hhvm:2.3.3
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cpe:2.3:a:facebook:hhvm:2.4.0
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cpe:2.3:a:facebook:hhvm:2.4.1
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cpe:2.3:a:facebook:hhvm:2.4.2
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cpe:2.3:a:facebook:hhvm:3.0.0
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cpe:2.3:a:facebook:hhvm:3.0.1
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cpe:2.3:a:facebook:hhvm:3.1.0
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cpe:2.3:a:facebook:hhvm:3.10.0
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cpe:2.3:a:facebook:hhvm:3.10.1
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cpe:2.3:a:facebook:hhvm:3.11.0
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cpe:2.3:a:facebook:hhvm:3.11.1
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cpe:2.3:a:facebook:hhvm:3.12.0
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cpe:2.3:a:facebook:hhvm:3.12.1
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cpe:2.3:a:facebook:hhvm:3.12.10
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cpe:2.3:a:facebook:hhvm:3.12.11
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cpe:2.3:a:facebook:hhvm:3.12.12
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cpe:2.3:a:facebook:hhvm:3.12.13
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cpe:2.3:a:facebook:hhvm:3.12.14
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cpe:2.3:a:facebook:hhvm:3.12.2
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cpe:2.3:a:facebook:hhvm:3.12.3
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cpe:2.3:a:facebook:hhvm:3.12.4
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cpe:2.3:a:facebook:hhvm:3.12.5
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cpe:2.3:a:facebook:hhvm:3.12.6
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cpe:2.3:a:facebook:hhvm:3.12.7
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cpe:2.3:a:facebook:hhvm:3.12.8
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cpe:2.3:a:facebook:hhvm:3.12.9
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cpe:2.3:a:facebook:hhvm:3.13.0
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cpe:2.3:a:facebook:hhvm:3.13.1
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cpe:2.3:a:facebook:hhvm:3.13.2
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cpe:2.3:a:facebook:hhvm:3.14.0
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cpe:2.3:a:facebook:hhvm:3.14.1
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cpe:2.3:a:facebook:hhvm:3.14.2
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cpe:2.3:a:facebook:hhvm:3.14.3
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cpe:2.3:a:facebook:hhvm:3.14.4
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cpe:2.3:a:facebook:hhvm:3.14.5
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cpe:2.3:a:facebook:hhvm:3.15.0
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cpe:2.3:a:facebook:hhvm:3.15.1
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cpe:2.3:a:facebook:hhvm:3.15.2
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cpe:2.3:a:facebook:hhvm:3.15.3
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cpe:2.3:a:facebook:hhvm:3.15.4
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cpe:2.3:a:facebook:hhvm:3.15.5
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cpe:2.3:a:facebook:hhvm:3.15.6
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cpe:2.3:a:facebook:hhvm:3.15.7
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cpe:2.3:a:facebook:hhvm:3.15.8
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cpe:2.3:a:facebook:hhvm:3.17.0
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cpe:2.3:a:facebook:hhvm:3.17.1
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cpe:2.3:a:facebook:hhvm:3.17.2
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cpe:2.3:a:facebook:hhvm:3.17.3
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cpe:2.3:a:facebook:hhvm:3.18.0
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cpe:2.3:a:facebook:hhvm:3.18.1
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cpe:2.3:a:facebook:hhvm:3.18.2
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cpe:2.3:a:facebook:hhvm:3.18.3
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cpe:2.3:a:facebook:hhvm:3.18.4
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cpe:2.3:a:facebook:hhvm:3.18.5
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cpe:2.3:a:facebook:hhvm:3.18.6
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cpe:2.3:a:facebook:hhvm:3.18.7
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cpe:2.3:a:facebook:hhvm:3.18.8
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cpe:2.3:a:facebook:hhvm:3.19.0
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cpe:2.3:a:facebook:hhvm:3.19.1
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cpe:2.3:a:facebook:hhvm:3.19.2
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cpe:2.3:a:facebook:hhvm:3.2.0
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cpe:2.3:a:facebook:hhvm:3.20.0
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cpe:2.3:a:facebook:hhvm:3.20.1
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cpe:2.3:a:facebook:hhvm:3.20.2
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cpe:2.3:a:facebook:hhvm:3.21.0
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cpe:2.3:a:facebook:hhvm:3.21.1
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cpe:2.3:a:facebook:hhvm:3.21.10
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cpe:2.3:a:facebook:hhvm:3.21.11
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cpe:2.3:a:facebook:hhvm:3.21.2
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cpe:2.3:a:facebook:hhvm:3.21.3
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cpe:2.3:a:facebook:hhvm:3.21.4
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cpe:2.3:a:facebook:hhvm:3.21.5
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cpe:2.3:a:facebook:hhvm:3.21.6
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cpe:2.3:a:facebook:hhvm:3.21.7
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cpe:2.3:a:facebook:hhvm:3.21.8
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cpe:2.3:a:facebook:hhvm:3.21.9
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cpe:2.3:a:facebook:hhvm:3.22.0
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cpe:2.3:a:facebook:hhvm:3.23.0
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cpe:2.3:a:facebook:hhvm:3.23.1
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cpe:2.3:a:facebook:hhvm:3.23.2
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cpe:2.3:a:facebook:hhvm:3.23.3
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cpe:2.3:a:facebook:hhvm:3.23.4
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cpe:2.3:a:facebook:hhvm:3.24.0
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cpe:2.3:a:facebook:hhvm:3.24.1
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cpe:2.3:a:facebook:hhvm:3.24.2
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cpe:2.3:a:facebook:hhvm:3.24.3
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cpe:2.3:a:facebook:hhvm:3.24.4
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cpe:2.3:a:facebook:hhvm:3.24.5
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cpe:2.3:a:facebook:hhvm:3.24.6
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cpe:2.3:a:facebook:hhvm:3.24.7
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cpe:2.3:a:facebook:hhvm:3.24.8
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cpe:2.3:a:facebook:hhvm:3.25.0
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cpe:2.3:a:facebook:hhvm:3.25.1
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cpe:2.3:a:facebook:hhvm:3.25.2
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cpe:2.3:a:facebook:hhvm:3.25.3
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cpe:2.3:a:facebook:hhvm:3.26.0
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cpe:2.3:a:facebook:hhvm:3.26.1
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cpe:2.3:a:facebook:hhvm:3.26.2
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cpe:2.3:a:facebook:hhvm:3.26.3
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cpe:2.3:a:facebook:hhvm:3.27.0
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cpe:2.3:a:facebook:hhvm:3.27.1
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cpe:2.3:a:facebook:hhvm:3.27.2
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cpe:2.3:a:facebook:hhvm:3.27.3
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cpe:2.3:a:facebook:hhvm:3.27.4
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cpe:2.3:a:facebook:hhvm:3.3.0
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cpe:2.3:a:facebook:hhvm:3.3.1
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cpe:2.3:a:facebook:hhvm:3.3.2
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cpe:2.3:a:facebook:hhvm:3.3.3
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cpe:2.3:a:facebook:hhvm:3.3.4
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cpe:2.3:a:facebook:hhvm:3.3.5
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cpe:2.3:a:facebook:hhvm:3.3.6
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cpe:2.3:a:facebook:hhvm:3.3.7
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cpe:2.3:a:facebook:hhvm:3.30
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cpe:2.3:a:facebook:hhvm:3.4.0
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cpe:2.3:a:facebook:hhvm:3.4.1
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cpe:2.3:a:facebook:hhvm:3.4.2
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cpe:2.3:a:facebook:hhvm:3.5.0
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cpe:2.3:a:facebook:hhvm:3.5.1
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cpe:2.3:a:facebook:hhvm:3.6.0
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cpe:2.3:a:facebook:hhvm:3.6.1
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cpe:2.3:a:facebook:hhvm:3.6.2
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cpe:2.3:a:facebook:hhvm:3.6.3
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cpe:2.3:a:facebook:hhvm:3.6.4
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cpe:2.3:a:facebook:hhvm:3.6.5
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cpe:2.3:a:facebook:hhvm:3.6.6
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cpe:2.3:a:facebook:hhvm:3.7.0
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cpe:2.3:a:facebook:hhvm:3.7.1
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cpe:2.3:a:facebook:hhvm:3.7.2
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cpe:2.3:a:facebook:hhvm:3.7.3
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cpe:2.3:a:facebook:hhvm:3.8.0
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cpe:2.3:a:facebook:hhvm:3.8.1
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cpe:2.3:a:facebook:hhvm:3.9.0
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cpe:2.3:a:facebook:hhvm:3.9.1
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cpe:2.3:a:facebook:hhvm:3.9.10
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cpe:2.3:a:facebook:hhvm:3.9.2
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cpe:2.3:a:facebook:hhvm:3.9.3
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cpe:2.3:a:facebook:hhvm:3.9.4
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cpe:2.3:a:facebook:hhvm:3.9.5
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cpe:2.3:a:facebook:hhvm:3.9.6
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cpe:2.3:a:facebook:hhvm:3.9.7
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cpe:2.3:a:facebook:hhvm:3.9.8
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cpe:2.3:a:facebook:hhvm:3.9.9