Integer underflow in envoy - CVE-2024-32975
Published: June 5, 2024
Vulnerability identifier: #VU91153
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-32975
CWE-ID: CWE-191
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 integer underflow in QuicheDataReader::PeekVarInt62Length() function. A remote attacker can send a specially crafted request to the affected application, trigger integer underflow and cause a denial of service condition on the target system.
Affected software
envoy
Amazon Linux AMI
Istio
Amazon Linux AMI
Istio
How to mitigate CVE-2024-32975
Install updates from vendor's website.
envoy - addressed in versions 1.27.6, 1.28.4, 1.29.5, 1.30.2
Istio - addressed in versions 1.20.7, 1.21.3, 1.22.1
Istio - addressed in versions 1.20.7, 1.21.3, 1.22.1