Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Uriparser Project | Uriparser | < 0.9.1 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://github.com/uriparser/uriparser/blob/master/ChangeLogRelease NotesThird Party Advisory
- https://github.com/uriparser/uriparser/commit/cef25028de5ff872c2e1f0a6c562eb3ea9PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00028.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00029.htmlMailing ListThird Party Advisory
- https://github.com/uriparser/uriparser/blob/master/ChangeLogRelease NotesThird Party Advisory
- https://github.com/uriparser/uriparser/commit/cef25028de5ff872c2e1f0a6c562eb3ea9PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00028.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00029.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2018-20721?
CVE-2018-20721 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 "//[:...
How severe is CVE-2018-20721?
CVE-2018-20721 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-20721?
Check the references section above for vendor advisories and patch information. Affected products include: Uriparser Project Uriparser, Debian Debian Linux.