Vulnerability-Lookup

ubuntu-cve-2015-2696

Vulnerability from osv_ubuntu

Published

2015-11-08 00:00

Modified

2026-04-22 07:37

Summary

Details

lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.

Severity

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2015-2696	REPORT
	https://ubuntu.com/security/notices/USN-2810-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2015-2696	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "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": "libkrad0",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
            "binary_name": "libkrb5-3",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
            "binary_name": "libkrb5support0",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "krb5",
        "purl": "pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.12+dfsg-2ubuntu5.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) before 1.14 relies on an inappropriate context handle, which allows remote attackers to cause a denial of service (incorrect pointer read and process crash) via a crafted IAKERB packet that is mishandled during a gss_inquire_context call.",
  "id": "UBUNTU-CVE-2015-2696",
  "modified": "2026-04-22T07:37:47Z",
  "published": "2015-11-08T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2696"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2810-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2015-2696"
    }
  ],
  "related": [
    "USN-2810-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2015-2696"
  ]
}

CVE-2015-2696 (GCVE-0-2015-2696)

Vulnerability from cvelistv5 – Published: 2015-11-09 02:00 – Updated: 2024-08-06 05:24

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre

References

10 references

URL	Tags
https://github.com/krb5/krb5/commit/e04f0283516e8…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/201611-14	vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/90675	vdb-entryx_refsource_BID
http://www.securitytracker.com/id/1034084	vdb-entryx_refsource_SECTRACK
http://krbdev.mit.edu/rt/Ticket/Display.html?id=8244	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2015/dsa-3395	vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2810-1	vendor-advisoryx_refsource_UBUNTU

Date Public

2015-10-26 00:00

Show details on NVD website

JSON

To clipboard

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        {
          "name": "DSA-3395",
          "tags": [
            "vendor-advisory",
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          "url": "http://www.debian.org/security/2015/dsa-3395"
        },
        {
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          "tags": [
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              {
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    "dateUpdated": "2024-08-06T05:24:38.388Z",
    "state": "PUBLISHED"
  },
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}

usn-2810-1

Vulnerability from osv_ubuntu

Published

2015-11-12 17:50

Modified

2026-04-22 07:36

Summary

krb5 vulnerabilities

Details

It was discovered that the Kerberos kpasswd service incorrectly handled certain UDP packets. A remote attacker could possibly use this issue to cause resource consumption, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS. (CVE-2002-2443)

It was discovered that Kerberos incorrectly handled null bytes in certain data fields. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2014-5355)

It was discovered that the Kerberos kdcpreauth modules incorrectly tracked certain client requests. A remote attacker could possibly use this issue to bypass intended preauthentication requirements. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694)

It was discovered that Kerberos incorrectly handled certain SPNEGO packets. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2695)

It was discovered that Kerberos incorrectly handled certain IAKERB packets. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2696, CVE-2015-2698)

It was discovered that Kerberos incorrectly handled certain TGS requests. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2015-2697)

References

URL

Type

	https://ubuntu.com/security/notices/USN-2810-1	ADVISORY
	https://ubuntu.com/security/CVE-2002-2443	REPORT
	https://ubuntu.com/security/CVE-2014-5355	REPORT
	https://ubuntu.com/security/CVE-2015-2694	REPORT
	https://ubuntu.com/security/CVE-2015-2695	REPORT
	https://ubuntu.com/security/CVE-2015-2696	REPORT
	https://ubuntu.com/security/CVE-2015-2697	REPORT
	https://ubuntu.com/security/CVE-2015-2698	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2014-5355",
              "severity": [
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2694",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2695",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2696",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2697",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2698",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "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"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
            "binary_name": "krb5-pkinit",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
          },
          {
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            "binary_version": "1.12+dfsg-2ubuntu5.2"
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          },
          {
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          },
          {
            "binary_name": "libkrb5support0",
            "binary_version": "1.12+dfsg-2ubuntu5.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "krb5",
        "purl": "pkg:deb/ubuntu/krb5@1.12+dfsg-2ubuntu5.2?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
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            {
              "introduced": "0"
            },
            {
              "fixed": "1.12+dfsg-2ubuntu5.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "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"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the Kerberos kpasswd service incorrectly handled\ncertain UDP packets. A remote attacker could possibly use this issue to\ncause resource consumption, resulting in a denial of service. This issue\nonly affected Ubuntu 12.04 LTS. (CVE-2002-2443)\n\nIt was discovered that Kerberos incorrectly handled null bytes in certain\ndata fields. A remote attacker could possibly use this issue to cause a\ndenial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu\n14.04 LTS. (CVE-2014-5355)\n\nIt was discovered that the Kerberos kdcpreauth modules incorrectly tracked\ncertain client requests. A remote attacker could possibly use this issue\nto bypass intended preauthentication requirements. This issue only affected\nUbuntu 14.04 LTS and Ubuntu 15.04. (CVE-2015-2694)\n\nIt was discovered that Kerberos incorrectly handled certain SPNEGO packets.\nA remote attacker could possibly use this issue to cause a denial of\nservice. (CVE-2015-2695)\n\nIt was discovered that Kerberos incorrectly handled certain IAKERB packets.\nA remote attacker could possibly use this issue to cause a denial of\nservice. (CVE-2015-2696, CVE-2015-2698)\n\nIt was discovered that Kerberos incorrectly handled certain TGS requests. A\nremote attacker could possibly use this issue to cause a denial of service.\n(CVE-2015-2697)\n",
  "id": "USN-2810-1",
  "modified": "2026-04-22T07:36:32Z",
  "published": "2015-11-12T17:50:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2810-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2002-2443"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2014-5355"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2694"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2695"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2696"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2697"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2698"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "krb5 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2002-2443",
    "UBUNTU-CVE-2014-5355",
    "UBUNTU-CVE-2015-2694",
    "UBUNTU-CVE-2015-2695",
    "UBUNTU-CVE-2015-2696",
    "UBUNTU-CVE-2015-2697",
    "UBUNTU-CVE-2015-2698"
  ]
}

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-2015-2696

Vulnerability from osv_ubuntu

CVE-2015-2696 (GCVE-0-2015-2696)

usn-2810-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature