CVE-2014-6052
libvncserver: NULL pointer dereference flaw in framebuffer setup
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
La función HandleRFBServerMessage en libvncclient/rfbproto.c en LibVNCServer 0.9.9 y anteriores no comprueba ciertos valores de retorno malloc, lo que permite a servidores remotos VNC causar una denegación de servicio (caída de la aplicación) o posiblemente ejecutar código arbitrario mediante la especificación de un tamaño de pantalla grande en un mensaje (1) FramebufferUpdate, (2) ResizeFrameBuffer, o (3) PalmVNCReSizeFrameBuffer.
A NULL pointer dereference flaw was found in LibVNCServer's framebuffer setup. A malicious VNC server could use this flaw to cause a VNC client to crash.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2014-09-01 CVE Reserved
- 2014-09-25 CVE Published
- 2024-01-09 EPSS Updated
- 2024-08-06 CVE Updated
- 2024-08-06 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-20: Improper Input Validation
- CWE-476: NULL Pointer Dereference
CAPEC
References (14)
| URL | Tag | Source |
|---|---|---|
| http://seclists.org/oss-sec/2014/q3/639 | Mailing List |
|
| http://www.ocert.org/advisories/ocert-2014-007.html | Third Party Advisory | |
| http://www.openwall.com/lists/oss-security/2014/09/25/11 | Mailing List |
|
| http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html | Third Party Advisory |
|
| http://www.securityfocus.com/bid/70091 | Vdb Entry | |
| https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/newsoft/libvncserver/commit/85a778c0e45e87e35ee7199f1f25020648e8b812 | 2024-08-06 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html | 2020-10-23 | |
| http://ubuntu.com/usn/usn-2365-1 | 2020-10-23 | |
| http://www.debian.org/security/2014/dsa-3081 | 2020-10-23 | |
| https://security.gentoo.org/glsa/201507-07 | 2020-10-23 | |
| https://usn.ubuntu.com/4587-1 | 2020-10-23 | |
| https://access.redhat.com/security/cve/CVE-2014-6052 | 2014-11-11 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1144288 | 2014-11-11 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Libvncserver Search vendor "Libvncserver" | Libvncserver Search vendor "Libvncserver" for product "Libvncserver" | <= 0.9.9 Search vendor "Libvncserver" for product "Libvncserver" and version " <= 0.9.9" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Solaris Search vendor "Oracle" for product "Solaris" | 11.3 Search vendor "Oracle" for product "Solaris" and version "11.3" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 7.0 Search vendor "Debian" for product "Debian Linux" and version "7.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 12.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "12.04" | lts |
Affected
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| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04" | lts |
Affected
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