CVE-2014-6053

Severity

50%

Complexity

99%

Confidentiality

48%

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

First reported 10 years ago

2014-12-15 18:59:00

Last updated 8 years ago

2016-12-22 02:59:00

Affected Software

Canonical Ubuntu Linux 12.04 LTS

12.04

Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)

14.04

Debian Linux 7.0

7.0

References

openSUSE-SU-2015:2207

[oss-security] 20140923 Multiple issues in libVNCserver

Mailing List, Third Party Advisory

61506

61682

USN-2365-1

Third Party Advisory

DSA-3081

Third Party Advisory

http://www.ocert.org/advisories/ocert-2014-007.html

Third Party Advisory, US Government Resource

[oss-security] 20140925 [oCERT-2014-007] libvncserver multiple issues

Mailing List, Third Party Advisory

https://github.com/newsoft/libvncserver/commit/6037a9074d52b1963c97cb28ea1096c7c14cbf28

Issue Tracking, Patch

[debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update

[debian-lts-announce] 20191129 [SECURITY] [DLA 2014-1] vino security update

[debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update

GLSA-201507-07

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