CVE-2019-19945

HighCVSS 7.5/10Last modified Jun 17, 2026

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 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-125 CWE-681

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/openwrt/openwrt/commits/masterPatch, Third Party Advisory
https://openwrt.org/advisory/2020-01-13-1Vendor Advisory
https://github.com/openwrt/openwrt/commits/masterPatch, Third Party Advisory
https://openwrt.org/advisory/2020-01-13-1Vendor Advisory

Timeline

Published: Mar 16, 2020
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2019

CVE-2019-199466.5The API in Dradis Pro 3.4.1 allows any user to extract the content of a project, even if this user is not part of the project team.CVE-2019-199474.6In the Linux kernel through 5.4.6, there are information leaks of uninitialized memory to a USB device in the drivers/net/can/usb/kvaser_usb CVE-2019-199489.8In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer overflow in the function WriteSGIImage of coders/sgi.c.CVE-2019-199499.1In ImageMagick 7.0.8-43 Q16, there is a heap-based buffer over-read in the function WritePNGImage of coders/png.c, related to Magick_png_wri CVE-2019-19955.5In ComposeActivityEmail of ComposeActivityEmail.java, there is a possible way to silently attach files to an email due to a confused deputy.CVE-2019-199509.8In GraphicsMagick 1.4 snapshot-20190403 Q8, there is a use-after-free in ThrowException and ThrowLoggedException of magick/error.c.CVE-2019-199519.8In GraphicsMagick 1.4 snapshot-20190423 Q8, there is a heap-based buffer overflow in the function ImportRLEPixels of coders/miff.c.CVE-2019-199529.8In ImageMagick 7.0.9-7 Q16, there is a use-after-free in the function MngInfoDiscardObject of coders/png.c, related to ReadOneMNGImage.CVE-2019-199539.1In GraphicsMagick 1.4 snapshot-20191208 Q8, there is a heap-based buffer over-read in the function EncodeImage of coders/pict.c.CVE-2019-199547.3Signal Desktop before 1.29.1 on Windows allows local users to gain privileges by creating a Trojan horse %SYSTEMDRIVE%\node_modules\.bin\wmi CVE-2019-199567.5xmlParseBalancedChunkMemoryRecover in parser.c in libxml2 before 2.9.10 has a memory leak related to newDoc->oldNs.CVE-2019-199576.5In libIEC61850 1.4.0, getNumberOfElements in mms/iso_mms/server/mms_access_result.c has an out-of-bounds read vulnerability, related to bufP