CVE-2014-6052 Memory corruption in n/a

What is CVE-2014-6052?

CVE-2014-6052 is a high-severity memory corruption vulnerability in Canonical Ubuntu Linux, published on 15 Dec 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.

Weakness: CWE-20

Which versions are affected by CVE-2014-6052?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Libvncserver Libvncserver, Oracle Solaris.

How do I fix CVE-2014-6052?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2014-6052 being exploited?

There is no known exploitation of CVE-2014-6052 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2014-6052, GHSA-hph4-vx7v-q23g, UBUNTU-CVE-2014-6052.