NULL Pointer Dereference Affecting openssl package, versions <1.1.0d-1
Snyk CVSS
Attack Complexity
Low
Availability
High
Threat Intelligence
Exploit Maturity
Mature
EPSS
95.42% (100th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN9-OPENSSL-374944
- published 4 May 2017
- disclosed 4 May 2017
Introduced: 4 May 2017
CVE-2017-3730 Open this link in a new tabHow to fix?
Upgrade Debian:9 openssl to version 1.1.0d-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.