vulnwire
6.5med

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.…

Published 10 y ago · modified 4 mo ago · JSON

CVSS
6.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.2%
percentile 88%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

3.16% probability of exploitation in the next 30 days, higher than 88% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.06.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
NVD2.06.4AV:N/AC:L/Au:N/C:P/I:P/A:N

Classification

Weakness

References

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

Sources

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