CVE-2016-1938
First published: Sun Jan 31 2016(Updated: )
Mozilla Firefox could provide weaker than expected security, caused by the creation of incorrect calculations in certain cases by the Network Security Services (NSS) mp_div() and mp_exptmod() functions. An attacker could exploit this vulnerability to create cryptographic weaknesses.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IBM Cognos Analytics | <=12.0.0-12.0.3 | |
| IBM Cognos Analytics | <=11.2.0-11.2.4 FP4 | |
| openSUSE | =42.1 | |
| openSUSE | =13.1 | |
| openSUSE | =13.2 | |
| Mozilla Network Security Services (NSS) | <=3.20.1 | |
| Mozilla Firefox | <=43.0.4 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00010.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/81955
- http://www.securityfocus.com/bid/91787
- http://www.securitytracker.com/id/1034825
- 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://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
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.21_release_notes
- 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
- https://security.gentoo.org/glsa/201605-06
- https://security.gentoo.org/glsa/201701-46
- https://www.ibm.com/support/pages/node/7177223 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2016-1938?
CVE-2016-1938 has been classified with a moderate severity level due to the potential for creating cryptographic weaknesses.
How do I fix CVE-2016-1938?
To fix CVE-2016-1938, ensure that you apply the latest patches provided by your affected software vendor.
Which software applications are affected by CVE-2016-1938?
CVE-2016-1938 affects various versions of Mozilla Firefox and Network Security Services (NSS), along with IBM Cognos Analytics.
What kind of attacks can exploit CVE-2016-1938?
An attacker can exploit CVE-2016-1938 to create weak cryptographic operations, potentially compromising secure communications.
What versions of Mozilla Firefox are impacted by CVE-2016-1938?
CVE-2016-1938 affects Mozilla Firefox up to version 43.0.4.
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- source/IBM
- agent/software-canonical-lookup
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- agent/references
- agent/description
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/ibm
- canonical/ibm cognos analytics
- version/ibm cognos analytics/12.0.0-12.0.3
- version/ibm cognos analytics/11.2.0-11.2.4 fp4
- vendor/opensuse
- canonical/opensuse
- version/opensuse/42.1
- version/opensuse/13.1
- version/opensuse/13.2
- vendor/mozilla
- canonical/mozilla network security services (nss)
- version/mozilla network security services (nss)/3.20.1
- canonical/mozilla firefox
- version/mozilla firefox/43.0.4