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VULNERABILITIES

CVE-2019-19945 Details

Description

uhttpd in OpenWrt through 18.06.5 and 19.x through 19.07.0-rc2 has an integer signedness error. This leads to out-of-bounds access to a heap buffer and a subsequent crash. It can be triggered with an HTTP POST request to a CGI script, specifying both "Transfer-Encoding: chunked" and a large negative Content-Length value.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/openwrt/openwrt/commits/master CVEPatchThird Party Advisory
https://openwrt.org/advisory/2020-01-13-1 CVEVendor Advisory
https://github.com/openwrt/openwrt/commits/master [email protected]PatchThird Party Advisory
https://openwrt.org/advisory/2020-01-13-1 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-125Out-of-bounds Read[email protected]
CWE-681Incorrect Conversion between Numeric Types[email protected]

Affected Products

ProductVersions
openwrt openwrt
>= 18.06.0, <= 18.06.5
19.07.0 -
19.07.0 rc1
19.07.0 rc2

CPE

  • cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*
  • cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
  • cpe:2.3:o:openwrt:openwrt:19.07.0:rc1:*:*:*:*:*:*
  • cpe:2.3:o:openwrt:openwrt:19.07.0:rc2:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2019-19945
NVD Published Date:
Mar 16, 2020
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2019-19945 Details - Not Deferred