Buffer overflow in Mozilla Network Security Services
CVE-2017-11696
Heap-based buffer overflow in the __hash_open 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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.007 (52.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.securitytracker.com/id/1039153 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securityfocus.com/bid/100345 (VDB Entry, Third Party Advisory, vdb-entry)
- www.geeknik.net/9brdqk6xu (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/143735/NSS-Buffer-Overflows-Floating-Point-Except… (VDB Entry, Third Party Advisory)
- seclists.org/fulldisclosure/2017/Aug/17 (mailing-list, Exploit, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202003-37 (vendor-advisory)
Frequently asked questions
- What is CVE-2017-11696?
- CVE-2017-11696 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-2017-11696?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-11696 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.