Resource exhaustion in pyopenssl - CVE-2018-1000808
Published: November 8, 2018 / Updated: November 9, 2018
Vulnerability identifier: #VU15783
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2018-1000808
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Python Cryptographic Authority
Affected software:
pyopenssl
pyopenssl
Detailed vulnerability description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to improper release of memory before removing the last reference in a Public Key Cryptography Standards (PKCS) #12 store. A remote unauthenticated attacker can send a specially crafted request that submits malicious input, exhaust memory resources and to cause the application to reload certificates from a PKCS #12 store.
How to mitigate CVE-2018-1000808
Update to version 17.5.0.