NULL pointer dereference in Mozilla NSS - CVE-2017-7502
Published: May 31, 2017
Vulnerability identifier: #VU6841
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-7502
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference error in NSS since 3.24.0 when processing empty SSLv2 messages, received from clients. A remote attacker can send specially crafted request to vulnerable service and perform denial of service attack.
The vulnerability exists due to NULL pointer dereference error in NSS since 3.24.0 when processing empty SSLv2 messages, received from clients. A remote attacker can send specially crafted request to vulnerable service and perform denial of service attack.
Affected software
Mozilla NSS
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux for x86_64
CentOS
Ubuntu
FlashSystem 900 9840-AE2 and 9843-AE2
FlashSystem 840 9840-AE1 & 9843-AE1
Debian Linux
Amazon Linux AMI
Red Hat Enterprise Linux for x86_64
CentOS
Ubuntu
FlashSystem 900 9840-AE2 and 9843-AE2
FlashSystem 840 9840-AE1 & 9843-AE1
How to mitigate CVE-2017-7502
Install update from vendor's repository.