libvncserver: server divide-by-zero flaw in scaling factor handling
Published Oct 6, 2014
4.3
MEDIUMCVSS 2.0
EPSS 5.54%
Description
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier allows remote attackers to cause a denial of service (divide-by-zero error and server crash) via a zero value in the scaling factor in a (1) PalmVNCSetScaleFactor or (2) SetScale message.
Affected products
No data.
Configuration 1
- ≤ 0.9.9
Configuration 2
- 7.0
Configuration 3
- 12.04
- 14.04
No data.
Red Hat Enterprise Linux 6
libvncserver-0:0.9.7-7.el6_6.1
Fixed · RHSA-2014:1826
Red Hat Enterprise Linux 7
kdenetwork-7:4.10.5-8.el7_0
Fixed · RHSA-2014:1827
Red Hat Enterprise Linux 7
libvncserver-0:0.9.9-9.el7_0.1
Fixed · RHSA-2014:1826
Red Hat Enterprise Linux 5
kdenetwork
Not affected
Red Hat Enterprise Linux 6
kdenetwork
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | libvncserver-0:0.9.7-7.el6_6.1 | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux 7 | kdenetwork-7:4.10.5-8.el7_0 | Fixed | RHSA-2014:1827 |
| Red Hat Enterprise Linux 7 | libvncserver-0:0.9.9-9.el7_0.1 | Fixed | RHSA-2014:1826 |
| Red Hat Enterprise Linux 5 | kdenetwork | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kdenetwork | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.54% (0.05540) | 92.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.54% (0.05540) | 91.80th | v5 (v2026.06.15) |
| May 13, 2026 | 37.75% (0.37747) | 97.25th | v4 (v2025.03.14) |
| Jan 2, 2026 | 34.58% (0.34577) | 96.88th | v4 (v2025.03.14) |
| Dec 28, 2025 | 40.56% (0.40565) | 97.21th | v4 (v2025.03.14) |
| Dec 27, 2025 | 43.84% (0.43841) | 97.42th | v4 (v2025.03.14) |
| Oct 28, 2025 | 40.56% (0.40565) | 97.18th | v4 (v2025.03.14) |
| Oct 27, 2025 | 43.84% (0.43841) | 97.38th | v4 (v2025.03.14) |
| Oct 1, 2025 | 40.56% (0.40565) | 97.28th | v4 (v2025.03.14) |
| Mar 30, 2025 | 43.84% (0.43841) | 97.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 35.28% (0.35282) | 95.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 41.72% (0.41721) | 97.11th | v4 (v2025.03.14) |
| Dec 17, 2024 | 48.37% (0.48369) | 97.56th | v3 (v2023.03.01) |
| Nov 22, 2024 | 80.28% (0.80281) | 98.42th | v3 (v2023.03.01) |
| Oct 4, 2024 | 86.84% (0.86845) | 98.68th | v3 (v2023.03.01) |
| May 18, 2024 | 88.57% (0.88570) | 98.69th | v3 (v2023.03.01) |
| Mar 7, 2023 | 90.49% (0.90494) | 98.20th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.41% (0.03407) | 84.65th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.41% (0.03407) | 83.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.41% (0.03407) | 66.20th | v2 (v2022.01.01) |
References (17)
- http://lists.opensuse.org/opensuse-updates/2015-12/msg00022.html vendor-advisoryx_refsource_SUSE
- http://seclists.org/oss-sec/2014/q3/639 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://secunia.com/advisories/61506 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/61682 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2014/dsa-3081 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.ocert.org/advisories/ocert-2014-007.html x_refsource_MISCThird Party AdvisoryUS Government Resource
- http://www.openwall.com/lists/oss-security/2014/09/25/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/70094 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2365-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-6054 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1144291 Issue Tracking
- https://github.com/newsoft/libvncserver/commit/05a9bd41a8ec0a9d580a8f420f41718bdd235446 x_refsource_CONFIRMIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2014-6054
- https://security.gentoo.org/glsa/201507-07 vendor-advisoryx_refsource_GENTOO
- https://usn.ubuntu.com/4587-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2014-6054
Change history (0)
No recorded changes yet.