UBUNTU-CVE-2019-15691

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Source
https://ubuntu.com/security/CVE-2019-15691
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-15691.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2019-15691
Related
Published
2019-12-26T15:15:00Z
Modified
2025-01-13T10:21:59Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

References

Affected packages

Ubuntu:Pro:18.04:LTS / tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc@1.7.0+dfsg-8ubuntu2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.7.0+dfsg-7ubuntu1
1.7.0+dfsg-8ubuntu2

Ecosystem specific 

{
    "ubuntu_priority": "medium"
}

Ubuntu:20.04:LTS / tigervnc

Package

Name
tigervnc
Purl
pkg:deb/ubuntu/tigervnc@1.10.1+dfsg-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.10.1+dfsg-1

Affected versions

1.*

1.9.0+dfsg-3
1.9.0+dfsg-4

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-common"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-common-dbgsym"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-scraping-server"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-scraping-server-dbgsym"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-standalone-server"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-standalone-server-dbgsym"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-viewer"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-viewer-dbgsym"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-xorg-extension"
        },
        {
            "binary_version": "1.10.1+dfsg-1",
            "binary_name": "tigervnc-xorg-extension-dbgsym"
        }
    ]
}