MozillaCVELIST:CVE-2016-1938CVE-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.
References
lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.html
www.debian.org/security/2016/dsa-3688
www.mozilla.org/security/announce/2016/mfsa2016-07.html
www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
www.securityfocus.com/bid/81955
www.securityfocus.com/bid/91787
www.securitytracker.com/id/1034825
www.ubuntu.com/usn/USN-2880-1
www.ubuntu.com/usn/USN-2880-2
www.ubuntu.com/usn/USN-2903-1
www.ubuntu.com/usn/USN-2903-2
www.ubuntu.com/usn/USN-2973-1
blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html
bugzilla.mozilla.org/show_bug.cgi?id=1190248
bugzilla.mozilla.org/show_bug.cgi?id=1194947
developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes
github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c
github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c
hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c
security.gentoo.org/glsa/201605-06
security.gentoo.org/glsa/201701-46
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