Candidate: CVE-2018-6345
PublicDate: 2019-01-15 22:29:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6345
 https://github.com/facebook/hhvm/commit/190ffdf6c8b1ec443be202c7d69e63a7e3da25e3
 https://hhvm.com/blog/2019/01/14/hhvm-3.30.2.html
Description:
 The function number_format is vulnerable to a heap overflow issue when its
 second argument ($dec_points) is excessively large. The internal
 implementation of the function will cause a string to be created with an
 invalid length, which can then interact poorly with other functions. This
 affects all supported versions of HHVM (3.30.1 and 3.27.5 and below).
Ubuntu-Description:
Notes:
Bugs:
Priority: medium
Discovered-by:
Assigned-to:
CVSS:
 nvd: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H [9.8 CRITICAL]
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H [9.8 CRITICAL]


Patches_hhvm:
upstream_hhvm: needs-triage
precise/esm_hhvm: DNE
trusty_hhvm: DNE
trusty/esm_hhvm: DNE
xenial_hhvm: ignored (end of standard support, was needs-triage)
bionic_hhvm: needs-triage
cosmic_hhvm: DNE
disco_hhvm: DNE
eoan_hhvm: DNE
focal_hhvm: DNE
groovy_hhvm: DNE
hirsute_hhvm: DNE
impish_hhvm: DNE
jammy_hhvm: DNE
devel_hhvm: DNE