Published: 13/12/2021 Updated: 07/11/2023

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

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

A stack-based buffer overflow in handle_request function in DHT.c in toxcore 0.1.9 up to and including 0.1.11 and 0.2.0 up to and including 0.2.12 (caused by an improper length calculation during the handling of received network packets) allows remote malicious users to crash the process or potentially execute arbitrary code via a network packet.

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toktok toxcore
fedoraproject fedora 34
fedoraproject fedora 35

Debian Bug report logs - #1001711 libtoxcore2: Stack-based buffer overflow vulnerability in UDP packet handling in Toxcore (CVE-2021-44847) Package: libtoxcore2; Maintainer for libtoxcore2 is Yangfl <mmyangfl@gmailcom>; Source for libtoxcore2 is src:libtoxcore (PTS, buildd, popcon) Reported by: Vincas Dargis <vindrg@gmai ...

A stack-based buffer overflow in handle_request function in DHTc in toxcore before version 0213 (caused by an improper length calculation during the handling of received network packets) allows remote attackers to crash the process or potentially execute arbitrary code via a network packet ...

CWE-682 https://github.com/TokTok/c-toxcore/pull/1718 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S7EBS3NIRYJ7V3PTNINP3PJSVUHGZTGA/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLTKINSPO5T65LB3ZASDPCREKUE22RYE/https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1001711 https://nvd.nist.gov https://security.archlinux.org/CVE-2021-44847

CVE-2021-44847

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