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CVE-2018-7225

Publication date 19 February 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Status

Package Ubuntu Release Status
italc 24.04 LTS noble Not in release
23.10 mantic Not in release
23.04 lunar Not in release
22.10 kinetic Not in release
22.04 LTS jammy Not in release
21.10 impish Not in release
21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
18.04 LTS bionic
Fixed 1:3.0.3+dfsg1-3ubuntu0.1
16.04 LTS xenial
Fixed 1:2.0.2+dfsg1-4ubuntu0.1
14.04 LTS trusty Not in release
libvncserver 24.04 LTS noble
Fixed 0.9.11+dfsg-1ubuntu1
23.10 mantic
Fixed 0.9.11+dfsg-1ubuntu1
23.04 lunar
Fixed 0.9.11+dfsg-1ubuntu1
22.10 kinetic
Fixed 0.9.11+dfsg-1ubuntu1
22.04 LTS jammy
Fixed 0.9.11+dfsg-1ubuntu1
21.10 impish
Fixed 0.9.11+dfsg-1ubuntu1
21.04 hirsute
Fixed 0.9.11+dfsg-1ubuntu1
20.10 groovy
Fixed 0.9.11+dfsg-1ubuntu1
20.04 LTS focal
Fixed 0.9.11+dfsg-1ubuntu0.1
18.04 LTS bionic
Fixed 0.9.11+dfsg-1ubuntu0.1
17.10 artful
Fixed 0.9.11+dfsg-1ubuntu0.1
16.04 LTS xenial
Fixed 0.9.10+dfsg-3ubuntu0.16.04.2
14.04 LTS trusty
Fixed 0.9.9+dfsg-1ubuntu1.3
tightvnc 24.04 LTS noble
Needs evaluation
23.10 mantic Ignored
23.04 lunar Ignored
22.10 kinetic Ignored
22.04 LTS jammy
Needs evaluation
21.10 impish Ignored
21.04 hirsute Ignored
20.10 groovy Ignored
20.04 LTS focal
Needs evaluation
18.04 LTS bionic
Needs evaluation
16.04 LTS xenial
Needs evaluation
14.04 LTS trusty
vino 24.04 LTS noble
Fixed 3.22.0-6ubuntu1
23.10 mantic
Fixed 3.22.0-6ubuntu1
23.04 lunar
Fixed 3.22.0-6ubuntu1
22.10 kinetic
Fixed 3.22.0-6ubuntu1
22.04 LTS jammy
Fixed 3.22.0-6ubuntu1
21.10 impish
Fixed 3.22.0-6ubuntu1
21.04 hirsute
Fixed 3.22.0-6ubuntu1
20.10 groovy
Fixed 3.22.0-6ubuntu1
20.04 LTS focal
Fixed 3.22.0-5ubuntu2.1
18.04 LTS bionic
Fixed 3.22.0-3ubuntu1.1
16.04 LTS xenial
Fixed 3.8.1-0ubuntu9.3
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libvncserver

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references