Detections
Analytics
CVE-2016-1938
medium
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.
References
http://www.securityfocus.com/bid/91787
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html
https://security.gentoo.org/glsa/201701-46
https://security.gentoo.org/glsa/201605-06
https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c
https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c
https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes
https://bugzilla.mozilla.org/show_bug.cgi?id=1194947
https://bugzilla.mozilla.org/show_bug.cgi?id=1190248
http://www.ubuntu.com/usn/USN-2973-1
http://www.ubuntu.com/usn/USN-2903-2
http://www.ubuntu.com/usn/USN-2903-1
http://www.ubuntu.com/usn/USN-2880-2
http://www.ubuntu.com/usn/USN-2880-1
http://www.securitytracker.com/id/1034825
http://www.securityfocus.com/bid/81955
http://www.mozilla.org/security/announce/2016/mfsa2016-07.html
http://www.debian.org/security/2016/dsa-3688
http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html