CVE-2017-3730
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 55.3% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 55.3% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 55.3% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Modified
Affected
- OpenSSL 1.1.0
- OpenSSL 1.1.0a
- OpenSSL 1.1.0b
- OpenSSL 1.1.0c
- Oracle Agile Engineering Data Management 6.1.3
- Oracle Agile Engineering Data Management 6.2.0
- Oracle Communications Application Session Controller 3.7.1
- Oracle Communications Application Session Controller 3.8.0
Attack profile CVSS 3.0 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2017-3730.md and follow it. Check whether this project is affected by CVE-2017-3730. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
- https://www.openssl.org/news/secadv/20170126.txt
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
- https://www.openssl.org/news/secadv/20170126.txt
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
References
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securityfocus.com/bid/95812
- http://www.securitytracker.com/id/1037717
- https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
- https://security.gentoo.org/glsa/201702-07
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
- https://www.exploit-db.com/exploits/41192/
- https://www.openssl.org/news/secadv/20170126.txt
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.securityfocus.com/bid/95812
- http://www.securitytracker.com/id/1037717
- https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
- https://security.gentoo.org/glsa/201702-07
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
- https://www.exploit-db.com/exploits/41192/
- https://www.openssl.org/news/secadv/20170126.txt
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html