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Vulnerability record · CVE-2017-7502 · published 30 May 2017

CVE-2017-7502: Mozilla network security services null pointer dereference vulnerability

Mozilla · Network Security Services

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.

7.5 CVSS 3.0 High EPSS 4.3% · top 9.2% CWE-476 · NULL pointer dereference
7.5CVSS 3.0 base score, v2 5.0
4.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3872
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/98744 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038579
https://access.redhat.com/errata/RHSA-2017:1364
https://access.redhat.com/errata/RHSA-2017:1365
https://access.redhat.com/errata/RHSA-2017:1567
https://access.redhat.com/errata/RHSA-2017:1712
https://hg.mozilla.org/projects/nss/rev/55ea60effd0d Patch
http://www.debian.org/security/2017/dsa-3872
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/98744 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1038579
https://access.redhat.com/errata/RHSA-2017:1364
https://access.redhat.com/errata/RHSA-2017:1365
https://access.redhat.com/errata/RHSA-2017:1567
https://access.redhat.com/errata/RHSA-2017:1712
https://hg.mozilla.org/projects/nss/rev/55ea60effd0d Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2014-1544Mozilla firefox vulnerabilityUse-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in Mozilla Network Security Services (NSS) 3.x, as used in Firefox…EPSS 6.1%9.8CVE-2019-17006Siemens ruggedcom rox mx5000 firmware improper input validation vulnerabilityIn Network Security Services (NSS) before 3.46, several cryptographic primitives had missing length checks. In cases where the application calling th…EPSS 3.6%9.8CVE-2017-5461Mozilla network security services out-of-bounds write vulnerabilityMozilla Network Security Services (NSS) before 3.21.4, 3.22.x through 3.28.x before 3.28.4, 3.29.x before 3.29.5, and 3.30.x before 3.30.1 allows rem…EPSS 4.7%9.8CVE-2015-7182Oracle traffic director memory buffer overflow vulnerabilityHeap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services (NSS) before 3.19.2.1 and 3.20.x before 3.20.1, as used in Firef…EPSS 10%9.3CVE-2014-1490Mozilla firefox race condition vulnerabilityRace condition in libssl in Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24…EPSS 3.9%9.3CVE-2009-2404Mozilla network security services memory buffer overflow vulnerabilityHeap-based buffer overflow in a regular-expression parser in Mozilla Network Security Services (NSS) before 3.12.3, as used in Firefox, Thunderbird, …EPSS 4.2%8.8CVE-2016-2834Canonical ubuntu linux vulnerabilityMozilla Network Security Services (NSS) before 3.23, as used in Mozilla Firefox before 47.0, allows remote attackers to cause a denial of service (me…EPSS 3.4%8.8CVE-2016-1979Mozilla firefox vulnerabilityUse-after-free vulnerability in the PK11_ImportDERPrivateKeyInfoAndReturnKey function in Mozilla Network Security Services (NSS) before 3.21.1, as us…EPSS 2.2%

Source: NIST National Vulnerability Database (record CVE-2017-7502), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.