UBUNTU-CVE-2020-9273

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Source
https://ubuntu.com/security/CVE-2020-9273
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-9273.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-9273
Upstream
Published
2020-02-20T16:15:00Z
Modified
2025-09-08T16:46:00Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.

References

Affected packages

Ubuntu:Pro:16.04:LTS / proftpd-dfsg

Package

Name
proftpd-dfsg
Purl
pkg:deb/ubuntu/proftpd-dfsg@1.3.5a-1ubuntu0.1?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

1.*

1.3.5-2
1.3.5a-1
1.3.5a-1build1
1.3.5a-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-basic"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-dev"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-geoip"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-ldap"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-mysql"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-odbc"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-pgsql"
        },
        {
            "binary_version": "1.3.5a-1ubuntu0.1",
            "binary_name": "proftpd-mod-sqlite"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / proftpd-dfsg

Package

Name
proftpd-dfsg
Purl
pkg:deb/ubuntu/proftpd-dfsg@1.3.5e-1build1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*

1.3.5d-1
1.3.5e-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-basic"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-dev"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-geoip"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-ldap"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-mysql"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-odbc"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-pgsql"
        },
        {
            "binary_version": "1.3.5e-1build1",
            "binary_name": "proftpd-mod-sqlite"
        }
    ]
}