CVE-2014-6052

Home/CVE/The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain

CVE

The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain

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.

HIGH · CVSS 7.5 EPSS 0.0454

Act now

Public exploit or PoC is available
CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-20Improper Input Validation

▤

Affected Products & Versions

libvncserver<= 0.9.9
oracle solarisall versions
debian linuxall versions
canonical ubuntu linuxall versions

⚠

Public Exploits & PoCs

pocgithub.com · 85a778c0e45e87e35ee7199f1f25020648e8b812github.com

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Scoring & Timeline

7.5

HIGH · CVSS v2 (legacy) · cve@mitre.org

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Published to NVD15 Dec 2014 · 06:59 PM

⚑

Vendor Advisories

usnUSN-4587-1
suse-csafSUSE-SU-2015:2088-1
suse-csafSUSE-SU-2015:2088-2
suse-csafSUSE-SU-2015:2110-1
usnUSN-2365-1
Show all 6 vendor advisoriesrhsaRHSA-2014:1826Moderate

🔗

References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html

http://seclists.org/oss-sec/2014/q3/639Mailing ListThird Party Advisory

http://secunia.com/advisories/61506Permissions RequiredThird Party Advisory

http://secunia.com/advisories/61682Permissions RequiredThird Party Advisory

http://ubuntu.com/usn/usn-2365-1Third Party Advisory

http://www.debian.org/security/2014/dsa-3081Third Party Advisory

Show all 13 references

http://www.ocert.org/advisories/ocert-2014-007.htmlThird Party AdvisoryUS Government Resource

http://www.openwall.com/lists/oss-security/2014/09/25/11Mailing ListThird Party Advisory

http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.htmlThird Party Advisory

http://www.securityfocus.com/bid/70091

https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html

https://security.gentoo.org/glsa/201507-07

https://usn.ubuntu.com/4587-1/

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