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CVE-2014-6051

Publication date 24 September 2014

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.

Read the notes from the security team

Status

Package Ubuntu Release Status
italc 20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 1:3.0.1+dfsg1-1
16.04 LTS xenial
Fixed 1:2.0.2+dfsg1-4ubuntu0.1
14.04 LTS trusty Not in release
krfb 14.04 LTS trusty Not in release
12.04 LTS precise Not in release
10.04 LTS lucid Not in release
libvncserver 14.04 LTS trusty
Fixed 0.9.9+dfsg-1ubuntu1.1
12.04 LTS precise
Fixed 0.9.8.2-2ubuntu1.1
10.04 LTS lucid Ignored end of life

Notes

mdeslaur

krfb is only a server, this issue is client side.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libvncserver

References

Related Ubuntu Security Notices (USN)

    • USN-2365-1
    • LibVNCServer vulnerabilities
    • 29 September 2014
    • USN-4587-1
    • iTALC vulnerabilities
    • 20 October 2020

Other references