KLA10852
Multiple vulnerabilities in Mozilla Firefox and Firefox ESR

Multiple serious vulnerabilities have been found in Mozilla Firefox. Malicious users can exploit these vulnerabilities to cause denial of service, obtain sensitive information, execute arbitrary code, spoof user interface, bypass security restrictions, conduct cross-site scripting or read local files.

Below is a complete list of vulnerabilities

1. An improper network connection handling can be exploited remotely via traffic overview to obtain sensitive information;
2. Multiple unknown vulnerabilities at the browser engine can be exploited remotely to cause denial of service or possibly execute arbitrary code;
3. Buffer overflow vulnerability at ClearKey Content Decryption Module can be exploited remotely via a specially designed video to execute arbitrary code;
4. Buffer overflow can be exploited remotely via a specially designed SVG document to execute arbitrary code;
5. An improper cairo calls can be exploited remotely via a specially designed video to cause denial of service;
6. Lack of restrictions can be exploited remotely via a specially designed API calls to obtain sensitive information;
7. An unknown vulnerability can be exploited remotely via a specially designed URL to spoof user interface;
8. Buffer overflow can be exploited remotely via a specially designed graphics to execute arbitrary code;
9. An unknown vulnerability at Updater can be exploited locally via vectors related to callback application-path parameter and a hard link to write arbitrary files;
10. Use-after-free vulnerability can be exploited via vectors related to keyboard yo cause denial of service or execute arbitrary code;
11. Use-after-free vulnerability can be exploited via a specially designed JavaScript to execute arbitrary code;
12. Use-after-free at WebRTC can be exploited remotely to execute arbitrary code;
13. Use-after-free vulnerability can be exploited remotely via a specially designed script to execute arbitrary code;
14. An improper input types handling at Sessions Manager can be exploited via session restoration file reading to obtain sensitive information;
15. Integer overflow at WebSocket can be exploited remotely via a specially designed packets to cause denial of service or execute arbitrary code;
16. Lack of restrictions can be exploited via a specially designed web-site to conduct cross-site scripting;
17. An improper rendering display transformation handling can be exploited remotely via a specially designed web site to execute arbitrary code;
18. Use-after-free vulnerability can be exploited remotely via a specially designed SVG element to cause denial of service or execute arbitrary code;
19. An unknown vulnerability can be exploited user-assisted remote attackers via a files manipulation to bypass security restrictions, conduct universal cross-site scripting attack or read arbitrary files;
20. Lack of drag-n-drop restrictions can be exploited via a specially designed web site to access local files;
21. An unknown vulnerability can be exploited remotely via a special characters to spoof user interface;
22. An improper flags handling can be exploited via a specially designed URL to spoof user interface.

Technical details

To exploit vulnerability №2 can be exploited via vectors related to Http2Session::Shutdown, SpdySession31::Shutdown, and other vectors.

Vulnerability №3 can be exploited via malformed video and Gecko Media Plugin (GMP) sandbox bypass.

Vulnerability №4 caused by Heap-based buffer overflow in the nsBidi::BracketData::AddOpening function

Vulnerability №5 related to cairo _cairo_surface_get_extents calls that do not properly interact with libav header allocation in FFmpeg 0.10

Vulnerability №8 caused by Stack-based buffer underflow in the mozilla::gfx::BasePoint4d function

Vulnerability №10 related to nsXULPopupManager::KeyDown function

Vulnerability №11 related to js::PreliminaryObjectArray::sweep function

Vulnerability №12 related to WebRTC socket thread

Vulnerability №13 related to CanonicalizeXPCOMParticipant function

Vulnerability №14 caused by mishandling changes from ‘INPUT type=»password»‘ to ‘INPUT type=»text»‘ within a single Session Manager session

Vulnerability №15 can be exploited via packets that trigger incorrect buffer-resize operations during buffering

Vulnerability №16 related to process JavaScript event-handler attributes of a MARQUEE element within a sandboxed IFRAME element that lacks the sandbox=»allow-scripts» attribute value

Vulnerability №17 related to nsDisplayList::HitTest function that mishandles rendering display transformation

Vulnerability №18 related to nsNodeUtils::NativeAnonymousChildListChange function

Vulnerability №20 caused by not restricted drag-and-drop (aka dataTransfer) actions for file: URIs

Vulnerability №21 can be exploited via left-to-right characters in conjunction with a right-to-left character set. (Android)

Vulnerability №22 caused by an improper LINKABLE and URI_SAFE_FOR_UNTRUSTED_CONTENT flags handling.

Firefox versions earlier than 48.0
Firefox ESR versions earlier than 45.3

Update to the latest version
Get Mozilla Firefox ESR
Get Mozilla Firefox