UBUNTU-CVE-2015-2694

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Source
https://ubuntu.com/security/CVE-2015-2694
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-2694.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2015-2694
Upstream
Downstream
Related
Published
2015-05-25T00:00:00Z
Modified
2025-09-08T16:43:21Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

The kdcpreauth modules in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.2 do not properly track whether a client's request has been validated, which allows remote attackers to bypass an intended preauthentication requirement by providing (1) zero bytes of data or (2) an arbitrary realm name, related to plugins/preauth/otp/main.c and plugins/preauth/pkinit/pkinit_srv.c.

References

Affected packages

Ubuntu:14.04:LTS / krb5

Package

Name
krb5
Purl
pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.2?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.12+dfsg-2ubuntu5.2

Affected versions

1.*

1.10.1+dfsg-6.1ubuntu1
1.11.3+dfsg-3ubuntu2
1.12+dfsg-2ubuntu1
1.12+dfsg-2ubuntu2
1.12+dfsg-2ubuntu3
1.12+dfsg-2ubuntu4
1.12+dfsg-2ubuntu4.2
1.12+dfsg-2ubuntu5
1.12+dfsg-2ubuntu5.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "krb5-admin-server",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-gss-samples",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-kdc",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-kdc-ldap",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-locales",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-multidev",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-otp",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-pkinit",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "krb5-user",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libgssapi-krb5-2",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libgssrpc4",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libk5crypto3",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkadm5clnt-mit9",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkadm5srv-mit8",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkadm5srv-mit9",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkdb5-7",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkrad-dev",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkrad0",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkrb5-3",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkrb5-dev",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        },
        {
            "binary_name": "libkrb5support0",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
        }
    ]
}