7.5

CVE-2017-7502: mozilla network_security_services NULL Pointer Dereference

CVSS: 7.5v3.0HighModified
AliasesMGASA-2017-0160RHSA-2017:1364RHSA-2017:1365
Published 30-05-2017Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2017-7502 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in mozilla network_security_services. EPSS estimates a 4.30% chance of exploitation in the next 30 days, higher than 91% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
4.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1
DSA-3872-1

Timeline

  1. 30-05-2017
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

4.30%

Chance of exploitation in the next 30 days

Percentile

91%

Versus all other CVEs

30-day change

0.00 pp

From 4.30% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat6 products
  • nss< 0:3.28.4-3.el6_9 | < 0:3.28.4-1.2.el7_3
  • nss-debuginfo< 0:3.28.4-3.el6_9 | < 0:3.28.4-1.2.el7_3
  • nss-devel< 0:3.28.4-3.el6_9 | < 0:3.28.4-1.2.el7_3
  • nss-pkcs11-devel< 0:3.28.4-3.el6_9 | < 0:3.28.4-1.2.el7_3
  • nss-sysinit< 0:3.28.4-3.el6_9 | < 0:3.28.4-1.2.el7_3
Debian1 product
  • nss< 2:3.26.2-1.1 | < 2:3.26-1+debu7u4
Mageia1 product
  • nss< 3.28.5-1.mga5
Mozilla1 product
  • network_security_services3.24.0 | 3.25.0 | 3.25.1 | 3.26.0 | 3.26.2 | 3.27.0 | 3.27.1 | 3.27.2 | 3.28.0 | 3.28.1 | 3.28.2 | 3.28.3 | 3.29.0 | 3.29.1 | 3.29.2 | 3.29.3 | 3.30.0 | 3.30.1
Nss project1 product
  • nsssince 3.24.0
Ubuntu1 product
  • nss< 2:3.28.4-0ubuntu0.14.04.2 | < 2:3.28.4-0ubuntu0.16.04.2

6 vendors · 11 products

References

24 links
Show all 24 references