CVE-2018-15127

Publication date 19 December 2018

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

LibVNC before commit 502821828ed00b4a2c4bef90683d0fd88ce495de contains heap out-of-bound write vulnerability in server code of file transfer extension that can result remote code execution

Read the notes from the security team

Status

Package Ubuntu Release Status
italc 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 20.04 LTS focal
Not affected
19.04 disco
Not affected
18.10 cosmic
Fixed 0.9.11+dfsg-1.1ubuntu0.1
18.04 LTS bionic
Fixed 0.9.11+dfsg-1ubuntu1.1
16.04 LTS xenial
Fixed 0.9.10+dfsg-3ubuntu0.16.04.3
14.04 LTS trusty
Fixed 0.9.9+dfsg-1ubuntu1.4
x11vnc 20.04 LTS focal
Not affected
19.04 disco
Not affected
18.10 cosmic Ignored end of life
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected

Notes

mdeslaur

initial commit was incomplete, see comment on original bug New CVE numbers for complete fix are CVE-2018-20749 and CVE-2018-20750

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)

    • USN-3877-1
    • LibVNCServer vulnerabilities
    • 31 January 2019
    • USN-4547-1
    • iTALC vulnerabilities
    • 28 September 2020
    • USN-4587-1
    • iTALC vulnerabilities
    • 20 October 2020

Other references