Medium severity · published Jan 31, 2016
CVE-2016-1938
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…
6.5
CVSS
3.2%
EPSS
No
On KEV
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
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
through 43.0.4 · source: NVD
LE
Leap · Opensuse
42.1 · source: NVD
NS
Nss · Mozilla
through 3.20.1 · source: NVD
OP
Opensuse · Opensuse
13.1; 13.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-1938
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-1938
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html
www.debian.org
http://www.debian.org/security/2016/dsa-3688
Vendor Advisory
http://www.mozilla.org/security/announce/2016/mfsa2016-07.html
Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
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