CVE-2019-19945

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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/openwrt/openwrt/commits/master	Patch Third Party Advisory
https://openwrt.org/advisory/2020-01-13-1	Vendor Advisory
https://github.com/openwrt/openwrt/commits/master	Patch Third Party Advisory
https://openwrt.org/advisory/2020-01-13-1	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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::::::

History

21 Nov 2024, 04:35

Type	Values Removed	Values Added
References	~~() https://github.com/openwrt/openwrt/commits/master - Patch, Third Party Advisory~~	() https://github.com/openwrt/openwrt/commits/master - Patch, Third Party Advisory
References	~~() https://openwrt.org/advisory/2020-01-13-1 - Vendor Advisory~~	() https://openwrt.org/advisory/2020-01-13-1 - Vendor Advisory

Information

Published : 2020-03-16 18:15

Updated : 2024-11-21 04:35

NVD link : CVE-2019-19945

Mitre link : CVE-2019-19945

CVE.ORG link : CVE-2019-19945

JSON object : View

Products Affected

openwrt

openwrt

CWE

CWE-125

Out-of-bounds Read

CWE-681

Incorrect Conversion between Numeric Types

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