CVE-2017-7502

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.66% Top 20%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org
Affected: NSS project nss
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2017:1365 vendor advisory
http://www.securitytracker.com/id/1038579 vdb entry
http://www.securityfocus.com/bid/98744 third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:1712 vendor advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
https://hg.mozilla.org/projects/nss/rev/55ea60effd0d patch
https://access.redhat.com/errata/RHSA-2017:1364 vendor advisory
https://access.redhat.com/errata/RHSA-2017:1567 vendor advisory
http://www.debian.org/security/2017/dsa-3872 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7502?
CVE-2017-7502 has been scored as a high severity vulnerability.
How to fix CVE-2017-7502?
To fix CVE-2017-7502, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7502 being actively exploited in the wild?
It is possible that CVE-2017-7502 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-7502?
CVE-2017-7502 affects NSS project nss.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.