Vulnerability Details : CVE-2018-20721
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.
Products affected by CVE-2018-20721
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:uriparser_project:uriparser:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-20721
0.27%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-20721
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2018-20721
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-20721
-
https://github.com/uriparser/uriparser/commit/cef25028de5ff872c2e1f0a6c562eb3ea9ecbce4
Fix uriParse*Ex* out-of-bounds read · uriparser/uriparser@cef2502 · GitHubPatch;Third Party Advisory
-
https://github.com/uriparser/uriparser/blob/master/ChangeLog
uriparser/ChangeLog at master · uriparser/uriparser · GitHubRelease Notes;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00028.html
[SECURITY] [DLA 1682-1] uriparser security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/11/msg00029.html
[SECURITY] [DLA 2834-1] uriparser security updateMailing List;Third Party Advisory
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