Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in…
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* | 20 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* | 21 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Debian |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:* | 6.5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:6.5.z:*:*:*:*:*:*:* | 6.5.z | Vulnerable | Red Hat |
| cpe:2.3:a:libvncserver:libvncserver:*:*:*:*:*:*:*:* | up to 0.9.9 | Vulnerable | Libvncserver |
- cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* Versions 21 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
- cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:* Versions 6.5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:6.5.z:*:*:*:*:*:*:* Versions 6.5.z Vulnerable ·Red Hat
- cpe:2.3:a:libvncserver:libvncserver:*:*:*:*:*:*:*:* Versions up to 0.9.9 Vulnerable ·Libvncserver
Remediation
Red Hat 3 advisories
- RHSA-2015:0113 Released 2015-02-02 · Red Hat rating Moderatelibvncserver security update
- Red Hat Enterprise Linux Server EUS (v. 6.5) libvncserver-0.9.7-7.el6_5.1
- Red Hat Enterprise Linux Server Optional EUS (v. 6.5) libvncserver-0.9.7-7.el6_5.1, libvncserver-0.9.7-7.el6_5.1.ppc, libvncserver-devel-0.9.7-7.el6_5.1 +1
- RHSA-2014:1827 Released 2014-11-11 · Red Hat rating Moderatekdenetwork security update
- Red Hat Enterprise Linux Client (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-common-7:4.10.5-8.el7_0, kdenetwork-kdnssd-7:4.10.5-8.el7_0 +6
- Red Hat Enterprise Linux Client Optional (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-devel-7:4.10.5-8.el7_0, kdenetwork-fileshare-samba-7:4.10.5-8.el7_0 +4
- Red Hat Enterprise Linux Server (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-common-7:4.10.5-8.el7_0, kdenetwork-devel-7:4.10.5-8.el7_0 +11
- Red Hat Enterprise Linux Server Optional (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-fileshare-samba-7:4.10.5-8.el7_0
- Red Hat Enterprise Linux Workstation (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-common-7:4.10.5-8.el7_0, kdenetwork-devel-7:4.10.5-8.el7_0 +11
- Red Hat Enterprise Linux Workstation Optional (v. 7) kdenetwork-7:4.10.5-8.el7_0, kdenetwork-fileshare-samba-7:4.10.5-8.el7_0
- RHSA-2014:1826 Released 2014-11-11 · Red Hat rating Moderatelibvncserver security update
- Red Hat Enterprise Linux Client (v. 7) libvncserver-0.9.9-9.el7_0.1
- Red Hat Enterprise Linux Client Optional (v. 7) libvncserver-devel-0.9.9-9.el7_0.1
- Red Hat Enterprise Linux Desktop (v. 6) libvncserver-0.9.7-7.el6_6.1
- Red Hat Enterprise Linux Desktop Optional (v. 6) libvncserver-0.9.7-7.el6_6.1, libvncserver-devel-0.9.7-7.el6_6.1
- Red Hat Enterprise Linux Server (v. 6) libvncserver-0.9.7-7.el6_6.1
- Red Hat Enterprise Linux Server (v. 7) libvncserver-0.9.9-9.el7_0.1
- Red Hat Enterprise Linux Server Optional (v. 6) libvncserver-0.9.7-7.el6_6.1, libvncserver-0.9.7-7.el6_6.1.ppc, libvncserver-devel-0.9.7-7.el6_6.1 +1
- Red Hat Enterprise Linux Server Optional (v. 7) libvncserver-devel-0.9.9-9.el7_0.1
- Red Hat Enterprise Linux Workstation (v. 6) libvncserver-0.9.7-7.el6_6.1
- Red Hat Enterprise Linux Workstation (v. 7) libvncserver-0.9.9-9.el7_0.1
- Red Hat Enterprise Linux Workstation Optional (v. 6) libvncserver-0.9.7-7.el6_6.1, libvncserver-devel-0.9.7-7.el6_6.1
- Red Hat Enterprise Linux Workstation Optional (v. 7) libvncserver-devel-0.9.9-9.el7_0.1
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
| Red Hat Enterprise Linux Server EUS (v. 6.5) | Fixed | RHSA-2015:0113 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
| Red Hat Enterprise Linux Server Optional EUS (v. 6.5) | Fixed | RHSA-2015:0113 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2014:1826, RHSA-2014:1827 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2014-6055
- 2026-10-03 Alias added: GHSA-ggwh-wx55-84cx
References
Patch 3
Advisory 10
Sources
- CVE-2014-6055 · CVE Program
- CVE-2014-6055 · NVD
- FIRST EPSS
- GHSA-ggwh-wx55-84cx · GitHub Advisory Database · CC BY 4.0
- CVE-2014-6055 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences