7.5

CVE-2017-3730

Exploit

Bad (EC)DHE parameters cause a client crash

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
OpenSSL ≫ OpenSSL Version1.1.0
OpenSSL ≫ OpenSSL Version1.1.0a
OpenSSL ≫ OpenSSL Version1.1.0b
OpenSSL ≫ OpenSSL Version1.1.0c
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 55.29% 0.989
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Patch
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
Patch
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Patch
http://www.securityfocus.com/bid/95812
Third Party Advisory
Broken Link
VDB Entry
http://www.securitytracker.com/id/1037717
Third Party Advisory
VDB Entry
https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa
Patch
Third Party Advisory
https://security.gentoo.org/glsa/201702-07
Third Party Advisory
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03838en_us
Third Party Advisory
https://www.exploit-db.com/exploits/41192/
Third Party Advisory
Exploit
VDB Entry
https://www.openssl.org/news/secadv/20170126.txt
Patch
Vendor Advisory