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CVE-2018-7225
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length,…
Critical9.8EPSS 6.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
An issue was discovered in LibVNCServer through 0.9.11. rfbProcessClientNormalMessage() in rfbserver.c does not sanitize msg.cct.length, leading to access to uninitialized and potentially sensitive data or possibly unspecified other impact (e.g., an integer overflow) via specially crafted VNC packets.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 6.1% · top 6.5% of all CVEs (4 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
n/a
- affected n/a
References (14)
- DSA-4221 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-3618-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/LibVNC/libvncserver/issues/218 (opens in a new tab)x_refsource_MISCx_transferred
- [debian-lts-announce] 20180330 [SECURITY] [DLA 1332-1] libvncserver security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 103107 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- http://www.openwall.com/lists/oss-security/2018/02/18/1 (opens in a new tab)x_refsource_MISCx_transferred
- RHSA-2018:1055 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-201908-05 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- [debian-lts-announce] 20191030 [SECURITY] [DLA 1979-1] italc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20191129 [SECURITY] [DLA 2014-1] vino security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [debian-lts-announce] 20191221 [SECURITY] [DLA 2045-1] tightvnc security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-4547-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4573-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-4587-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-7225)Record last updated .