VulnerabilityModified
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.
CRITICAL 9.8EPSS 2.05%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.05% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- uriparser project/uriparser · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/uriparser/uriparser/blob/master/ChangeLogRelease Notes, Third Party Advisory
- https://github.com/uriparser/uriparser/commit/cef25028de5ff872c2e1f0a6c562eb3ea9ecbce4Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00028.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00029.htmlMailing List, Third Party Advisory
- https://github.com/uriparser/uriparser/blob/master/ChangeLogRelease Notes, Third Party Advisory
- https://github.com/uriparser/uriparser/commit/cef25028de5ff872c2e1f0a6c562eb3ea9ecbce4Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00028.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/11/msg00029.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.