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CVE-2016-1938

Published: Jan 31, 2016Updated: May 6, 2026 Sources: CVE List NVDCWE-310
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
3.1%
Top 13.9%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

Description

The s_mp_div function in lib/freebl/mpi/mpi.c in Mozilla Network Security Services (NSS) before 3.21, as used in Mozilla Firefox before 44.0, improperly divides numbers, which might make it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging use of the (1) mp_div or (2) mp_exptmod function.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-310

Affected Products

n/an/a
leapopensuse
On-premOS
Operating Systems / linux-distro
opensuseopensuse
On-premOS
Operating Systems / linux-distro
nssmozillaConsumer Software
firefoxmozilla
On-premDesktop App
Consumer Software / browser
opensuseoss-projectDEOperating Systemsaka opensuse
mozillaoss-projectUSConsumer Softwareaka mozilla corp.

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

http://www.securityfocus.com/bid/81955
securityfocus.com
http://www.debian.org/security/2016/dsa-3688
debian.org
http://www.securitytracker.com/id/1034825
securitytracker.com
and 20 more references View all →

Timeline

Published
Jan 31, 2016
Last Updated
May 6, 2026

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