CVE-2016-1938
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2016-1938
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2016-1938.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2016-1938
- Downstream
- Related
- Published
- 2016-01-31T18:59:05Z
- Modified
- 2025-08-09T20:01:25Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
The smpdiv 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) mpdiv or (2) mpexptmod function.
- References
-
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
- http://www.debian.org/security/2016/dsa-3688
- http://www.mozilla.org/security/announce/2016/mfsa2016-07.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
- http://www.securityfocus.com/bid/91787
- http://www.ubuntu.com/usn/USN-2880-1
- http://www.ubuntu.com/usn/USN-2880-2
- http://www.ubuntu.com/usn/USN-2903-1
- http://www.ubuntu.com/usn/USN-2903-2
- http://www.ubuntu.com/usn/USN-2973-1
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes
- https://security.gentoo.org/glsa/201605-06
- https://security.gentoo.org/glsa/201701-46
- https://blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1190248
- https://bugzilla.mozilla.org/show_bug.cgi?id=1194947
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html
- http://www.securityfocus.com/bid/81955
- http://www.securitytracker.com/id/1034825
- https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c
- https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c
- https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c