Resource exhaustion in scapy - CVE-2019-1010142
Published: July 23, 2019 / Updated: July 24, 2019
Vulnerability identifier: #VU19317
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-1010142
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a lack of input validation while reading the length field in the RADIUS packet’s Attribute Value Pairs (AVP). A remote attacker can send a specially crafted packet that has an AVP with a length byte equal to zero and crash the target system.
Affected software
scapy
Fedora
scapy
Fedora
scapy
How to mitigate CVE-2019-1010142
Install updates from vendor's website.
scapy - update to 2.4.1
scapy - addressed in versions 2.4.3-1.fc30, 2.4.3-1.fc31, 2.4.3-2.el7, 2.4.3-2.el8, 2.4.3-2.fc29
scapy - addressed in versions 2.4.3-1.fc30, 2.4.3-1.fc31, 2.4.3-2.el7, 2.4.3-2.el8, 2.4.3-2.fc29