CVE-2015-0834
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but...
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
Exploit likelihood
What each source reports
NVD Score used
4.3
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
- Record
CVE-2015-0834- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
- Record
CVE-2015-0834- Updated
- 2026-11-02
EUVDEUVD-2015-0847 No score
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
- Record
EUVD-2015-0847- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9cm2-qg89-qv3m No score
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but...
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
- Record
GHSA-9cm2-qg89-qv3m- Weakness
- CWE-200
- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10071-1 No score
MozillaFirefox-50.1.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-50.1.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10071-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10218-1 No score
seamonkey-2.40-6.1 on GA media
These are all security issues fixed in the seamonkey-2.40-6.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10218-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14572-1 No score
firefox-esr-128.5.1-1.1 on GA media
These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:14572-1- Updated
- 2026-11-02
OSVUBUNTU-CVE-2015-0834 No score
The WebRTC subsystem in Mozilla Firefox before 36.0 recognizes turns: and stuns: URIs but accesses the TURN or STUN server without using TLS, which makes it easier for man-in-the-middle attackers to discover credentials by spoofing a server and completing a brute-force attack within a short time window.
- Record
UBUNTU-CVE-2015-0834- Updated
- 2026-11-02
OSVUSN-2505-1 No score
firefox vulnerabilities
Matthew Noorenberghe discovered that Mozilla domains in the allowlist could make UITour API calls from background tabs. If one of these domains were compromised and open in a background tab, an attacker could potentially exploit this to conduct clickjacking attacks. (CVE-2015-0819)
Jan de Mooij discovered an issue that affects content using the Caja Compiler. If web content loads specially crafted code, this could be used to bypass sandboxing security measures provided by Caja. (CVE-2015-0820)
Armin Razmdjou discovered that opening hyperlinks with specific mouse and key combinations could allow a Chrome privileged URL to be opened without context restrictions being preserved. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass security restrictions. (CVE-2015-0821)
Armin Razmdjou discovered that contents of locally readable files could be made available via manipulation of form autocomplete in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2015-0822)
Atte Kettunen discovered a use-after-free in the OpenType Sanitiser (OTS) in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash. (CVE-2015-0823)
Atte Kettunen discovered a crash when drawing images using Cairo in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2015-0824)
Atte Kettunen discovered a buffer underflow during playback of MP3 files in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2015-0825)
Atte Kettunen discovered a buffer overflow during CSS restyling in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2015-0826)
Abhishek Arya discovered an out-of-bounds read and write when rendering SVG content in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2015-0827)
A buffer overflow was discovered in libstagefright during video playback in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2015-0829)
Daniele Di Proietto discovered that WebGL could cause a crash in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2015-0830)
Paul Bandha discovered a use-after-free in IndexedDB. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. (CVE-2015-0831)
Muneaki Nishimura discovered that a period appended to a hostname could bypass key pinning and HSTS in some circumstances. A remote attacker could potentially exloit this to conduct a Machine-in-the-middle (MITM) attack. (CVE-2015-0832)
Alexander Kolesnik discovered that Firefox would attempt plaintext connections to servers when handling turns: and stuns: URIs. A remote attacker could potentially exploit this by conducting a Machine-in-the-middle (MITM) attack in order to obtain credentials. (CVE-2015-0834)
Carsten Book, Christoph Diehl, Gary Kwong,…
- Record
USN-2505-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
firefoxUbuntu:14.04:LTS |
before 36.0+build2-0ubuntu0.14.04.4, plus listed versions 24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1 Show 10 moreShow less28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.1 |
36.0+build2-0ubuntu0.14.04.4 |
firefoxUbuntu:14.04:LTS From an advisory covering 16 CVEs |
before 36.0+build2-0ubuntu0.14.04.4, plus listed versions 24.0+build1-0ubuntu125.0+build3-0ubuntu0.13.10.128.0~b2+build1-0ubuntu228.0+build1-0ubuntu128.0+build2-0ubuntu1 Show 10 moreShow less28.0+build2-0ubuntu229.0+build1-0ubuntu0.14.04.230.0+build1-0ubuntu0.14.04.331.0+build1-0ubuntu0.14.04.132.0+build1-0ubuntu0.14.04.132.0.3+build1-0ubuntu0.14.04.133.0+build2-0ubuntu0.14.04.134.0+build2-0ubuntu0.14.04.135.0+build3-0ubuntu0.14.04.235.0.1+build1-0ubuntu0.14.04.1 |
36.0+build2-0ubuntu0.14.04.4 |
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 899 CVEs |
before 50.1.0-1.1 | 50.1.0-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 1860 CVEs |
before 128.5.1-1.1 | 128.5.1-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-0834 is a medium vulnerability (CVSS 4.3) in Mozilla Firefox, published February 25, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.58%, the 75th percentile. Fixed in firefox 36.0+build2-0ubuntu0.14.04.4.
References
securityfocus.com/bid/72743
security.gentoo.org/glsa/201504-01
lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.html
oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
mozilla.org/security/announce/2015/mfsa2015-15.html
bugzilla.mozilla.org/show_bug.cgi?id=1098314
Show 194 moreShow less
securitytracker.com/id/1031791
lists.opensuse.org/opensuse-updates/2015-03/msg00067.html
ubuntu.com/usn/USN-2505-1
nvd.nist.gov/vuln/detail/CVE-2015-0834
github.com/advisories/GHSA-9cm2-qg89-qv3m
ubuntu.com/security/CVE-2015-0834
mozilla.org/en-US/security/advisories/mfsa2015-15
ubuntu.com/security/notices/USN-2505-1
cve.org/CVERecord?id=CVE-2015-0834
ubuntu.com/security/CVE-2015-0819
ubuntu.com/security/CVE-2015-0820
ubuntu.com/security/CVE-2015-0821
ubuntu.com/security/CVE-2015-0822
ubuntu.com/security/CVE-2015-0823
ubuntu.com/security/CVE-2015-0824
ubuntu.com/security/CVE-2015-0825
ubuntu.com/security/CVE-2015-0826
ubuntu.com/security/CVE-2015-0827
ubuntu.com/security/CVE-2015-0829
ubuntu.com/security/CVE-2015-0830
ubuntu.com/security/CVE-2015-0831
ubuntu.com/security/CVE-2015-0832
ubuntu.com/security/CVE-2015-0835
ubuntu.com/security/CVE-2015-0836
suse.com/security/cve/CVE-2008-5913
suse.com/security/cve/CVE-2009-0040
suse.com/security/cve/CVE-2009-0652
suse.com/security/cve/CVE-2009-0771
suse.com/security/cve/CVE-2009-0772
suse.com/security/cve/CVE-2009-0773
suse.com/security/cve/CVE-2009-0774
suse.com/security/cve/CVE-2009-0775
suse.com/security/cve/CVE-2009-0776
suse.com/security/cve/CVE-2009-0777
suse.com/security/cve/CVE-2009-1044
suse.com/security/cve/CVE-2009-1169
suse.com/security/cve/CVE-2009-1302
suse.com/security/cve/CVE-2009-1303
suse.com/security/cve/CVE-2009-1304
suse.com/security/cve/CVE-2009-1305
suse.com/security/cve/CVE-2009-1306
suse.com/security/cve/CVE-2009-1307
suse.com/security/cve/CVE-2009-1308
suse.com/security/cve/CVE-2009-1309
suse.com/security/cve/CVE-2009-1310
suse.com/security/cve/CVE-2009-1311
suse.com/security/cve/CVE-2009-1312
suse.com/security/cve/CVE-2009-1313
suse.com/security/cve/CVE-2009-1563
suse.com/security/cve/CVE-2009-2470
suse.com/security/cve/CVE-2009-2654
suse.com/security/cve/CVE-2009-3069
suse.com/security/cve/CVE-2009-3070
suse.com/security/cve/CVE-2009-3071
suse.com/security/cve/CVE-2009-3072
suse.com/security/cve/CVE-2009-3073
suse.com/security/cve/CVE-2009-3074
suse.com/security/cve/CVE-2009-3075
suse.com/security/cve/CVE-2009-3077
suse.com/security/cve/CVE-2009-3078
suse.com/security/cve/CVE-2009-3079
suse.com/security/cve/CVE-2009-3274
suse.com/security/cve/CVE-2009-3370
suse.com/security/cve/CVE-2009-3371
suse.com/security/cve/CVE-2009-3372
suse.com/security/cve/CVE-2009-3373
suse.com/security/cve/CVE-2009-3374
suse.com/security/cve/CVE-2009-3375
suse.com/security/cve/CVE-2009-3376
suse.com/security/cve/CVE-2009-3377
suse.com/security/cve/CVE-2009-3378
suse.com/security/cve/CVE-2009-3379
suse.com/security/cve/CVE-2009-3380
suse.com/security/cve/CVE-2009-3381
suse.com/security/cve/CVE-2009-3383
suse.com/security/cve/CVE-2009-3388
suse.com/security/cve/CVE-2009-3389
suse.com/security/cve/CVE-2009-3555
suse.com/security/cve/CVE-2009-3979
suse.com/security/cve/CVE-2009-3980
suse.com/security/cve/CVE-2009-3982
suse.com/security/cve/CVE-2009-3983
suse.com/security/cve/CVE-2009-3984
suse.com/security/cve/CVE-2009-3985
suse.com/security/cve/CVE-2010-0164
suse.com/security/cve/CVE-2010-0165
suse.com/security/cve/CVE-2010-0166
suse.com/security/cve/CVE-2010-0167
suse.com/security/cve/CVE-2010-0168
suse.com/security/cve/CVE-2010-0169
suse.com/security/cve/CVE-2010-0170
suse.com/security/cve/CVE-2010-0171
suse.com/security/cve/CVE-2010-0172
suse.com/security/cve/CVE-2010-0173
suse.com/security/cve/CVE-2010-0174
suse.com/security/cve/CVE-2010-0176
suse.com/security/cve/CVE-2010-0177
suse.com/security/cve/CVE-2010-0178
suse.com/security/cve/CVE-2010-0181
suse.com/security/cve/CVE-2010-0182
suse.com/security/cve/CVE-2010-0654
suse.com/security/cve/CVE-2010-1028
suse.com/security/cve/CVE-2010-1121
suse.com/security/cve/CVE-2010-1125
suse.com/security/cve/CVE-2010-1196
suse.com/security/cve/CVE-2010-1197
suse.com/security/cve/CVE-2010-1198
suse.com/security/cve/CVE-2010-1199
suse.com/security/cve/CVE-2010-1200
suse.com/security/cve/CVE-2010-1201
suse.com/security/cve/CVE-2010-1202
suse.com/security/cve/CVE-2010-1203
suse.com/security/cve/CVE-2010-1205
suse.com/security/cve/CVE-2010-1206
suse.com/security/cve/CVE-2010-1207
suse.com/security/cve/CVE-2010-1208
suse.com/security/cve/CVE-2010-1209
suse.com/security/cve/CVE-2010-1210
suse.com/security/cve/CVE-2010-1211
suse.com/security/cve/CVE-2010-1212
suse.com/security/cve/CVE-2010-1213
suse.com/security/cve/CVE-2010-1214
suse.com/security/cve/CVE-2010-1215
suse.com/security/cve/CVE-2010-2751
suse.com/security/cve/CVE-2010-2752
suse.com/security/cve/CVE-2010-2753
suse.com/security/cve/CVE-2010-2754
suse.com/security/cve/CVE-2010-2755
suse.com/security/cve/CVE-2010-2760
suse.com/security/cve/CVE-2010-2762
suse.com/security/cve/CVE-2010-2764
suse.com/security/cve/CVE-2010-2765
suse.com/security/cve/CVE-2010-2766
suse.com/security/cve/CVE-2010-2767
suse.com/security/cve/CVE-2010-2768
suse.com/security/cve/CVE-2010-2769
suse.com/security/cve/CVE-2010-3166
suse.com/security/cve/CVE-2010-3167
suse.com/security/cve/CVE-2010-3168
suse.com/security/cve/CVE-2010-3169
suse.com/security/cve/CVE-2010-3170
suse.com/security/cve/CVE-2010-3173
suse.com/security/cve/CVE-2010-3174
suse.com/security/cve/CVE-2010-3175
suse.com/security/cve/CVE-2010-3176
suse.com/security/cve/CVE-2010-3177
suse.com/security/cve/CVE-2010-3178
suse.com/security/cve/CVE-2010-3179
suse.com/security/cve/CVE-2010-3180
suse.com/security/cve/CVE-2010-3182
suse.com/security/cve/CVE-2010-3183
suse.com/security/cve/CVE-2010-3765
suse.com/security/cve/CVE-2011-0068
suse.com/security/cve/CVE-2011-0069
suse.com/security/cve/CVE-2011-0070
suse.com/security/cve/CVE-2011-0079
suse.com/security/cve/CVE-2011-0080
suse.com/security/cve/CVE-2011-0081
suse.com/security/cve/CVE-2011-0084
suse.com/security/cve/CVE-2011-1187
suse.com/security/cve/CVE-2011-1202
suse.com/security/cve/CVE-2011-2366
suse.com/security/cve/CVE-2011-2367
suse.com/security/cve/CVE-2011-2368
suse.com/security/cve/CVE-2011-2369
suse.com/security/cve/CVE-2011-2370
suse.com/security/cve/CVE-2011-2371
suse.com/security/cve/CVE-2011-2372
suse.com/security/cve/CVE-2011-2373
suse.com/security/cve/CVE-2011-2374
suse.com/security/cve/CVE-2011-2375
suse.com/security/cve/CVE-2011-2377
suse.com/security/cve/CVE-2011-2985
suse.com/security/cve/CVE-2011-2986
suse.com/security/cve/CVE-2011-2988
suse.com/security/cve/CVE-2011-2989
suse.com/security/cve/CVE-2011-2990
suse.com/security/cve/CVE-2011-2991
suse.com/security/cve/CVE-2011-2992
suse.com/security/cve/CVE-2011-2993
suse.com/security/cve/CVE-2011-2995
suse.com/security/cve/CVE-2011-2996
suse.com/security/cve/CVE-2011-2997
suse.com/security/cve/CVE-2011-3000
suse.com/security/cve/CVE-2011-3001
suse.com/security/cve/CVE-2011-3002
suse.com/security/cve/CVE-2011-3003
suse.com/security/cve/CVE-2011-3004
suse.com/security/cve/CVE-2011-3005
suse.com/security/cve/CVE-2011-3026
suse.com/security/cve/CVE-2011-3062
suse.com/security/cve/CVE-2011-3079
suse.com/security/cve/CVE-2011-3101
lists.opensuse.org/archives/list/[email protected]/thread/3HI2RC7AJAHY74Q6MK7GNGWU6TITB22V
Left out here: 1,916 references and the rest of 1 source description. The JSON record has them.