9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.7%
A stack-based buffer overflow in handle_request function in DHT.c in
toxcore 0.1.9 through 0.1.11 and 0.2.0 through 0.2.12 (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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 20.04 | noarch | libtoxcore | < any | UNKNOWN |
ubuntu | 22.04 | noarch | libtoxcore | < 0.2.13-1 | UNKNOWN |
ubuntu | 22.10 | noarch | libtoxcore | < 0.2.13-1 | UNKNOWN |
ubuntu | 23.04 | noarch | libtoxcore | < 0.2.13-1 | UNKNOWN |
ubuntu | 23.10 | noarch | libtoxcore | < 0.2.13-1 | UNKNOWN |
ubuntu | 24.04 | noarch | libtoxcore | < 0.2.13-1 | UNKNOWN |
blog.tox.chat/2021/12/stack-based-buffer-overflow-vulnerability-in-udp-packet-handling-in-toxcore-cve-2021-44847/
github.com/TokTok/c-toxcore/pull/1718
launchpad.net/bugs/cve/CVE-2021-44847
nvd.nist.gov/vuln/detail/CVE-2021-44847
security-tracker.debian.org/tracker/CVE-2021-44847
www.cve.org/CVERecord?id=CVE-2021-44847
9.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.011 Low
EPSS
Percentile
84.7%