CVE-2016-1938
Severity Score
6.5
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
La función s_mp_div en lib/freebl/mpi/mpi.c en Mozilla Network Security Services (NSS) en versiones anteriores a 3.21, como se utiliza en Mozilla Firefox en versiones anteriores a 44.0, no divide adecuadamente números, lo que podría hacer mas fácil para atacantes remotos vencer el mecanismo de protección criptográfico mediante el aprovechamiento del uso de la función (1) mp_div o (2) mp_exptmod.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2016-01-20 CVE Reserved
- 2016-01-27 CVE Published
- 2023-03-07 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-310: Cryptographic Issues
CAPEC
References (23)
| URL | Tag | Source |
|---|---|---|
| http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html | Third Party Advisory |
|
| http://www.securityfocus.com/bid/81955 | Vdb Entry | |
| http://www.securityfocus.com/bid/91787 | Third Party Advisory | |
| http://www.securitytracker.com/id/1034825 | Vdb Entry | |
| https://blog.fuzzing-project.org/37-Mozilla-NSS-Wrong-calculation-results-in-mp_div-and-mp_exptmod.html | X_refsource_misc | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1190248 | Issue Tracking | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1194947 | Issue Tracking | |
| https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_div.c | X_refsource_misc | |
| https://github.com/hannob/bignum-fuzz/blob/master/CVE-2016-1938-nss-mp_exptmod.c | X_refsource_misc | |
| https://hg.mozilla.org/projects/nss/diff/a555bf0fc23a/lib/freebl/mpi/mpi.c | X_refsource_confirm |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Mozilla Search vendor "Mozilla" | Nss Search vendor "Mozilla" for product "Nss" | <= 3.20.1 Search vendor "Mozilla" for product "Nss" and version " <= 3.20.1" | - |
Affected
| in | Mozilla Search vendor "Mozilla" | Firefox Search vendor "Mozilla" for product "Firefox" | <= 43.0.4 Search vendor "Mozilla" for product "Firefox" and version " <= 43.0.4" | - |
Affected
|
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 42.1 Search vendor "Opensuse" for product "Leap" and version "42.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Opensuse Search vendor "Opensuse" for product "Opensuse" | 13.1 Search vendor "Opensuse" for product "Opensuse" and version "13.1" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Opensuse Search vendor "Opensuse" for product "Opensuse" | 13.2 Search vendor "Opensuse" for product "Opensuse" and version "13.2" | - |
Affected
| ||||||