Memory leak in Undertow - CVE-2020-10705
Published: March 17, 2021
Vulnerability identifier: #VU51519
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-2020-10705
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak when processing certain requests to the "Expect: 100-continue" header. A remote attacker can force the server to leak memory and perform denial of service attack.
Affected software
Undertow
openEuler
undertow
undertow-javadoc
openEuler
undertow
undertow-javadoc
How to mitigate CVE-2020-10705
Install updates from vendor's website.
Undertow - update to 2.1.1
undertow - update to 1.4.0-4
undertow-javadoc - update to 1.4.0-4
undertow - update to 1.4.0-4
undertow-javadoc - update to 1.4.0-4