Vulnerability-Lookup

ubuntu-cve-2016-1494

Vulnerability from osv_ubuntu

Published

2016-01-13 15:59

Modified

2025-07-18 16:43

Summary

Details

The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.

Severity

5.3 (Medium)


                    
                      CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2016-1494	REPORT
	https://blog.filippo.io/bleichenbacher-06-signatu…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2016-1494	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-rsa",
            "binary_version": "3.1.2-1ubuntu0.1"
          },
          {
            "binary_name": "python3-rsa",
            "binary_version": "3.1.2-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "python-rsa",
        "purl": "pkg:deb/ubuntu/python-rsa@3.1.2-1ubuntu0.1?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.1.2-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.1.2-1"
      ]
    }
  ],
  "aliases": [],
  "details": "The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.",
  "id": "UBUNTU-CVE-2016-1494",
  "modified": "2025-07-18T16:43:23Z",
  "published": "2016-01-13T15:59:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-1494"
    },
    {
      "type": "REPORT",
      "url": "https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2016-1494"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2016-1494"
  ]
}

CVE-2016-1494 (GCVE-0-2016-1494)

Vulnerability from cvelistv5 – Published: 2016-01-13 15:00 – Updated: 2024-08-05 22:55

Summary

The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

8 references

URL	Tags
http://www.openwall.com/lists/oss-security/2016/01/05/3	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/79829	vdb-entryx_refsource_BID
https://blog.filippo.io/bleichenbacher-06-signatu…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2016/01/05/1	mailing-listx_refsource_MLIST
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE
https://bitbucket.org/sybren/python-rsa/pull-requ…	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA

Date Public

2016-01-04 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2016-1494

Vulnerability from osv_ubuntu

CVE-2016-1494 (GCVE-0-2016-1494)

Tags

Sightings

Nomenclature