Vulnerability Details : CVE-2017-7502
Null pointer dereference vulnerability in NSS since 3.24.0 was found when server receives empty SSLv2 messages resulting into denial of service by remote attacker.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2017-7502
- cpe:2.3:a:mozilla:network_security_services:3.28.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.28.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.27.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.25.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.29.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.29.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.26.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.25.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.30.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.30.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.29.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.29.3:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.26.2:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.24.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.28.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.28.1:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.27.0:*:*:*:*:*:*:*
- cpe:2.3:a:mozilla:network_security_services:3.27.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7502
4.51%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 93 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7502
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-7502
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Secondary)
- secalert@redhat.com (Primary)
References for CVE-2017-7502
-
https://access.redhat.com/errata/RHSA-2017:1364
RHSA-2017:1364 - Security Advisory - Red Hat Customer Portal
-
http://www.debian.org/security/2017/dsa-3872
Debian -- Security Information -- DSA-3872-1 nss
-
https://access.redhat.com/errata/RHSA-2017:1567
RHSA-2017:1567 - Security Advisory - Red Hat Customer Portal
-
https://hg.mozilla.org/projects/nss/rev/55ea60effd0d
nss: changeset 13001:55ea60effd0d7c427f9b57a0bd43fb0fcbdae0e9Patch
-
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Oracle Critical Patch Update - October 2017
-
https://access.redhat.com/errata/RHSA-2017:1365
RHSA-2017:1365 - Security Advisory - Red Hat Customer Portal
-
http://www.securityfocus.com/bid/98744
Mozilla Network Security Services CVE-2017-7502 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
http://www.securitytracker.com/id/1038579
Network Security Services (NSS) Null Pointer Dereference in ssl3_GatherData() Lets Remote Users Cause the Target Service to Crash - SecurityTracker
-
https://access.redhat.com/errata/RHSA-2017:1712
RHSA-2017:1712 - Security Advisory - Red Hat Customer Portal
Jump to