Vulnerability in Mozilla Firefox
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 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.
Vulnerability class: POODLE (CVE-2014-3566)
EPSS: 0.031 (86.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
Affected products
- Mozilla Firefox
- Mozilla Nss
- Opensuse Leap — versions 42.1
- Opensuse — versions 13.1, 13.2
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (vdb-entry, x_refsource_BID)
- security@mozilla.org (vendor-advisory, x_refsource_DEBIAN)
- security@mozilla.org (vdb-entry, x_refsource_SECTRACK)
- security@mozilla.org (vendor-advisory, x_refsource_GENTOO)
- security@mozilla.org (x_refsource_CONFIRM, Third Party Advisory)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory)
- security@mozilla.org (x_refsource_MISC)
Frequently asked questions
- What is CVE-2016-1938?
- CVE-2016-1938 is a medium-severity vulnerability in Mozilla Firefox, classified under Cryptographic Issues. CVSS score: 6.5/10. Published 2016-01-31.
- How severe is CVE-2016-1938?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2016-1938 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.