CVE-2018-20721
uriparser - security update
9.8
CRITICAL
CVSS 3.1
EPSS 0.51%
Description
URI_FUNC() in UriParse.c in uriparser before 0.9.1 has an out-of-bounds read (in uriParse*Ex* functions) for an incomplete URI with an IPv6 address containing an embedded IPv4 address, such as a "//[::44.1" address.
How to fix CVE-2018-20721
To remediate CVE-2018-20721, upgrade the affected package to a fixed version below.
- Debian/uriparser—upgrade to 0.9.1-1 or later
- —upgrade to 0.8.0.1-2+deb8u2 or later
- —upgrade to 0.8.4-1+deb9u2 or later
Is CVE-2018-20721 being exploited?
Low — EPSS is 0.5%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.9.1-1
- from 0, < 0.8.0.1-2+deb8u2
- from 0, < 0.8.4-1+deb9u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |