Buffer overflow in Mozilla Network_security_services

CVE-2017-11695

Heap-based buffer overflow in the alloc_segs function in lib/dbm/src/hash.c in Mozilla Network Security Services (NSS) allows context-dependent attackers to have unspecified impact using a crafted cert8.db file.

Vulnerability class: Buffer Overflow

EPSS: 0.001 (25.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (VDB Entry, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (mailing-list, Exploit, x_refsource_FULLDISC, Mailing List, Third Party Advisory)
  • cve@mitre.org (vendor-advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2017-11695?
CVE-2017-11695 is a high-severity vulnerability in Mozilla Network_security_services, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2017-12-27.
How severe is CVE-2017-11695?
High severity. CVSS v3 base score is 7.8 out of 10.
Is CVE-2017-11695 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.