CVE-2019-3556: Facebook HHVM vulnerability
Facebook · HHVM
Vendor fix available · Affected: Facebook HHVM · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 78% of scored CVEs
Not scored yet. The CVE record carries no CVSS score.
DescriptionCVE.org
HHVM supports the use of an "admin" server which accepts administrative requests over HTTP. One of those request handlers, dump-pcre-cache, can be used to output cached regular expressions from the current execution context into a file. The handler takes a parameter which specifies where on the filesystem to write this data. The parameter is not validated, allowing a malicious user to overwrite arbitrary files where the user running HHVM has write access. This issue affects HHVM versions prior to 4.56.2, all versions between 4.57.0 and 4.78.0, as well as 4.79.0, 4.80.0, 4.81.0, 4.82.0, and 4.83.0.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Facebook · HHVM4.83.0; 4.82.0; 4.81.0; 4.80.0; 4.79.0; 4.57.0 and 1 more
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Published
- October 2021
CoverageNo articles yet
No CyberSIXT article names CVE-2019-3556 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.