USN-4256-1

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Source
https://ubuntu.com/security/notices/USN-4256-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4256-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4256-1
Upstream
Related
Published
2020-01-28T13:00:48.135083Z
Modified
2025-07-16T08:53:50.775228Z
Summary
cyrus-sasl2 vulnerability
Details

It was discovered that Cyrus SASL incorrectly handled certain LDAP packets. An attacker could possibly use this issue to execute arbitrary code or cause a denial of service.

References

Affected packages

Ubuntu:Pro:14.04:LTS / cyrus-sasl2

Package

Name
cyrus-sasl2
Purl
pkg:deb/ubuntu/cyrus-sasl2@2.1.25.dfsg1-17ubuntu0.1~esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.25.dfsg1-17ubuntu0.1~esm1

Affected versions

2.*

2.1.25.dfsg1-17
2.1.25.dfsg1-17build1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "cyrus-sasl2-dbg",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "cyrus-sasl2-doc",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "cyrus-sasl2-heimdal-dbg",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "cyrus-sasl2-mit-dbg",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-2",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-2-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-dev",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-dev-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-db",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-db-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-ldap",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-ldap-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-otp",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-otp-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-sql",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsasl2-modules-sql-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "sasl2-bin",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        },
        {
            "binary_name": "sasl2-bin-dbgsym",
            "binary_version": "2.1.25.dfsg1-17ubuntu0.1~esm1"
        }
    ]
}

Ubuntu:16.04:LTS / cyrus-sasl2

Package

Name
cyrus-sasl2
Purl
pkg:deb/ubuntu/cyrus-sasl2@2.1.26.dfsg1-14ubuntu0.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.26.dfsg1-14ubuntu0.2

Affected versions

2.*

2.1.26.dfsg1-14
2.1.26.dfsg1-14build1
2.1.26.dfsg1-14ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "cyrus-sasl2-dbg",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "cyrus-sasl2-doc",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "cyrus-sasl2-heimdal-dbg",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "cyrus-sasl2-mit-dbg",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-2",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-2-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-dev",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-dev-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-db",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-db-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-ldap",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-ldap-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-otp",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-otp-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-sql",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "libsasl2-modules-sql-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "sasl2-bin",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        },
        {
            "binary_name": "sasl2-bin-dbgsym",
            "binary_version": "2.1.26.dfsg1-14ubuntu0.2"
        }
    ]
}

Ubuntu:18.04:LTS / cyrus-sasl2

Package

Name
cyrus-sasl2
Purl
pkg:deb/ubuntu/cyrus-sasl2@2.1.27~101-g0780600+dfsg-3ubuntu2.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.27~101-g0780600+dfsg-3ubuntu2.1

Affected versions

2.*

2.1.27~101-g0780600+dfsg-3ubuntu1
2.1.27~101-g0780600+dfsg-3ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "cyrus-sasl2-doc",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-2",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-2-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-dev",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-db",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-db-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-heimdal-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-gssapi-mit-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-ldap",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-ldap-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-otp",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-otp-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-sql",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "libsasl2-modules-sql-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "sasl2-bin",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        },
        {
            "binary_name": "sasl2-bin-dbgsym",
            "binary_version": "2.1.27~101-g0780600+dfsg-3ubuntu2.1"
        }
    ]
}