UBUNTU-CVE-2015-1793

See a problem?
Source
https://ubuntu.com/security/notices/UBUNTU-CVE-2015-1793
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-1793.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2015-1793
Related
Published
2015-07-09T00:00:00Z
Modified
2015-07-09T00:00:00Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
[none]
Details

The X509verifycert function in crypto/x509/x509_vfy.c in OpenSSL 1.0.1n, 1.0.1o, 1.0.2b, and 1.0.2c does not properly process X.509 Basic Constraints cA values during identification of alternative certificate chains, which allows remote attackers to spoof a Certification Authority role and trigger unintended certificate verifications via a valid leaf certificate.

References

Affected packages

Ubuntu:14.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@1.0.1f-1ubuntu2.15?arch=src?distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.0.1f-1ubuntu2.15

Affected versions

1.*

1.0.1e-3ubuntu1
1.0.1e-4ubuntu1
1.0.1e-4ubuntu2
1.0.1e-4ubuntu3
1.0.1e-4ubuntu4
1.0.1f-1ubuntu1
1.0.1f-1ubuntu2
1.0.1f-1ubuntu2.1
1.0.1f-1ubuntu2.2
1.0.1f-1ubuntu2.3
1.0.1f-1ubuntu2.4
1.0.1f-1ubuntu2.5
1.0.1f-1ubuntu2.7
1.0.1f-1ubuntu2.8
1.0.1f-1ubuntu2.11
1.0.1f-1ubuntu2.12

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "libssl1.0.0-udeb-dbgsym": "1.0.1f-1ubuntu2.15",
            "libssl-dev": "1.0.1f-1ubuntu2.15",
            "libssl1.0.0": "1.0.1f-1ubuntu2.15",
            "libssl-doc": "1.0.1f-1ubuntu2.15",
            "libcrypto1.0.0-udeb-dbgsym": "1.0.1f-1ubuntu2.15",
            "libssl1.0.0-dbg": "1.0.1f-1ubuntu2.15",
            "libssl-dev-dbgsym": "1.0.1f-1ubuntu2.15",
            "openssl": "1.0.1f-1ubuntu2.15",
            "openssl-dbgsym": "1.0.1f-1ubuntu2.15",
            "libssl1.0.0-udeb": "1.0.1f-1ubuntu2.15",
            "libssl1.0.0-dbgsym": "1.0.1f-1ubuntu2.15",
            "libcrypto1.0.0-udeb": "1.0.1f-1ubuntu2.15"
        }
    ]
}