Vulnerability Details : CVE-2016-5256
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 49.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.
Vulnerability category: OverflowMemory CorruptionExecute codeDenial of service
Products affected by CVE-2016-5256
- cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-5256
3.69%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 92 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-5256
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2016-5256
-
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-5256
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1282746
1282746 - Assertion failure: comp == compartment || runtime()->isAtomsCompartment(comp) || (srcKind == JS::TraceKind::Object && InCrossCompartmentMap(static_cast<JSObject*>(src), thing)), at js/src/jsIssue Tracking
-
https://security.gentoo.org/glsa/201701-15
Mozilla Firefox, Thunderbird: Multiple vulnerabilities (GLSA 201701-15) — Gentoo security
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https://bugzilla.mozilla.org/show_bug.cgi?id=1268034
1268034 - Assertion failure: isObject(), at dist/include/js/Value.h:1281Issue Tracking
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1297099
1297099 - LoadManagerSingleton weak reference used on multiple threadsIssue Tracking
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1296087
1296087 - IonCache getter stub may not correctly restore clobbered registerIssue Tracking
-
https://bugzilla.mozilla.org/show_bug.cgi?id=1296078
1296078 - format string mismatch in CreateDXVAManagerEvent::Run()Issue Tracking
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https://bugzilla.mozilla.org/show_bug.cgi?id=1290244
1290244 - Crash: double-free [@xcb_render_create_picture]Issue Tracking
-
http://www.securityfocus.com/bid/93052
Mozilla Firefox MFSA 2016-85 Multiple Security Vulnerabilities
-
http://www.mozilla.org/security/announce/2016/mfsa2016-85.html
Security vulnerabilities fixed in Firefox 49 — MozillaVendor Advisory
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http://www.securitytracker.com/id/1036852
Mozilla Firefox Multiple Flaws Let Remote Users Execute Arbitrary Code, Bypass Security Restrictions, Determine File Paths, and Obtain Potentially Sensitive Information - SecurityTracker
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https://bugzilla.mozilla.org/show_bug.cgi?id=1276413
1276413 - Clear the buffer we allocate for paletted image framesIssue Tracking
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