USN-7969-1

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Source
https://ubuntu.com/security/notices/USN-7969-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-7969-1
Upstream
Related
Published
2026-01-19T19:34:58Z
Modified
2026-02-10T04:50:48Z
Summary
crawl vulnerability
Details

David Mendenhall discovered that Dungeon Crawl Stone Soup was incorrectly handling Lua bytecode embedded in an uploaded .crawlrc file. An attacker could possibly use this issue to execute arbitrary code.

References

Affected packages

Ubuntu:Pro:16.04:LTS / crawl

Package

Name
crawl
Purl
pkg:deb/ubuntu/crawl@2:0.17.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:0.17.1-1ubuntu0.1~esm1

Affected versions

2:0.*
2:0.16.1-1
2:0.16.2-1
2:0.17.0-1
2:0.17.1-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2:0.17.1-1ubuntu0.1~esm1",
            "binary_name": "crawl"
        },
        {
            "binary_version": "2:0.17.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-common"
        },
        {
            "binary_version": "2:0.17.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles"
        },
        {
            "binary_version": "2:0.17.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11722",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:18.04:LTS / crawl

Package

Name
crawl
Purl
pkg:deb/ubuntu/crawl@2:0.21.1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:0.21.1-1ubuntu0.1~esm1

Affected versions

2:0.*
2:0.20.1-1
2:0.21.0-1
2:0.21.1-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2:0.21.1-1ubuntu0.1~esm1",
            "binary_name": "crawl"
        },
        {
            "binary_version": "2:0.21.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-common"
        },
        {
            "binary_version": "2:0.21.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles"
        },
        {
            "binary_version": "2:0.21.1-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:Pro:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11722",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:20.04:LTS / crawl

Package

Name
crawl
Purl
pkg:deb/ubuntu/crawl@2:0.24.0-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:0.24.0-1ubuntu0.1~esm1

Affected versions

2:0.*
2:0.23.2-1
2:0.24.0-1
2:0.24.0-1build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "2:0.24.0-1ubuntu0.1~esm1",
            "binary_name": "crawl"
        },
        {
            "binary_version": "2:0.24.0-1ubuntu0.1~esm1",
            "binary_name": "crawl-common"
        },
        {
            "binary_version": "2:0.24.0-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles"
        },
        {
            "binary_version": "2:0.24.0-1ubuntu0.1~esm1",
            "binary_name": "crawl-tiles-data"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7969-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2020-11722",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}