usn-2855-2
Vulnerability from osv_ubuntu
USN-2855-1 fixed vulnerabilities in Samba. The upstream fix for CVE-2015-5252 introduced a regression in certain specific environments. This update fixes the problem.
Original advisory details:
Thilo Uttendorfer discovered that the Samba LDAP server incorrectly handled certain packets. A remote attacker could use this issue to cause the LDAP server to stop responding, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-3223)
Jan Kasprzak discovered that Samba incorrectly handled certain symlinks. A remote attacker could use this issue to access files outside the exported share path. (CVE-2015-5252)
Stefan Metzmacher discovered that Samba did not enforce signing when creating encrypted connections. If a remote attacker were able to perform a machine-in-the-middle attack, this flaw could be exploited to view sensitive information. (CVE-2015-5296)
It was discovered that Samba incorrectly performed access control when using the VFS shadow_copy2 module. A remote attacker could use this issue to access snapshots, contrary to intended permissions. (CVE-2015-5299)
Douglas Bagnall discovered that Samba incorrectly handled certain string lengths. A remote attacker could use this issue to possibly access sensitive information. (CVE-2015-5330)
It was discovered that the Samba LDAP server incorrectly handled certain packets. A remote attacker could use this issue to cause the LDAP server to stop responding, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-7540)
Andrew Bartlett discovered that Samba incorrectly checked administrative privileges during creation of machine accounts. A remote attacker could possibly use this issue to bypass intended access restrictions in certain environments. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-8467)
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [],
"ecosystem": "Ubuntu:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-winbind",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libpam-smbpass",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libpam-winbind",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libparse-pidl-perl",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libsmbclient",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libsmbsharemodes0",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "libwbclient0",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "python-samba",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "registry-tools",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-common",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-common-bin",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-dsdb-modules",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-libs",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-testsuite",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "samba-vfs-modules",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "smbclient",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
},
{
"binary_name": "winbind",
"binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "samba",
"purl": "pkg:deb/ubuntu/samba@2:4.1.6+dfsg-1ubuntu2.14.04.12?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2:4.1.6+dfsg-1ubuntu2.14.04.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2:3.6.18-1ubuntu3",
"2:4.0.10+dfsg-4ubuntu2",
"2:4.0.13+dfsg-1ubuntu1",
"2:4.1.3+dfsg-2ubuntu2",
"2:4.1.3+dfsg-2ubuntu3",
"2:4.1.3+dfsg-2ubuntu4",
"2:4.1.3+dfsg-2ubuntu5",
"2:4.1.6+dfsg-1ubuntu1",
"2:4.1.6+dfsg-1ubuntu2",
"2:4.1.6+dfsg-1ubuntu2.14.04.1",
"2:4.1.6+dfsg-1ubuntu2.14.04.2",
"2:4.1.6+dfsg-1ubuntu2.14.04.3",
"2:4.1.6+dfsg-1ubuntu2.14.04.4",
"2:4.1.6+dfsg-1ubuntu2.14.04.5",
"2:4.1.6+dfsg-1ubuntu2.14.04.7",
"2:4.1.6+dfsg-1ubuntu2.14.04.8",
"2:4.1.6+dfsg-1ubuntu2.14.04.9",
"2:4.1.6+dfsg-1ubuntu2.14.04.11"
]
}
],
"aliases": [],
"details": "USN-2855-1 fixed vulnerabilities in Samba. The upstream fix for\nCVE-2015-5252 introduced a regression in certain specific environments.\nThis update fixes the problem.\n\nOriginal advisory details:\n\n Thilo Uttendorfer discovered that the Samba LDAP server incorrectly handled\n certain packets. A remote attacker could use this issue to cause the LDAP\n server to stop responding, resulting in a denial of service. This issue\n only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10.\n (CVE-2015-3223)\n \n Jan Kasprzak discovered that Samba incorrectly handled certain symlinks. A\n remote attacker could use this issue to access files outside the exported\n share path. (CVE-2015-5252)\n \n Stefan Metzmacher discovered that Samba did not enforce signing when\n creating encrypted connections. If a remote attacker were able to perform a\n machine-in-the-middle attack, this flaw could be exploited to view sensitive\n information. (CVE-2015-5296)\n \n It was discovered that Samba incorrectly performed access control when\n using the VFS shadow_copy2 module. A remote attacker could use this issue\n to access snapshots, contrary to intended permissions. (CVE-2015-5299)\n \n Douglas Bagnall discovered that Samba incorrectly handled certain string\n lengths. A remote attacker could use this issue to possibly access\n sensitive information. (CVE-2015-5330)\n \n It was discovered that the Samba LDAP server incorrectly handled certain\n packets. A remote attacker could use this issue to cause the LDAP server to\n stop responding, resulting in a denial of service. This issue only affected\n Ubuntu 14.04 LTS, Ubuntu 15.04 and Ubuntu 15.10. (CVE-2015-7540)\n \n Andrew Bartlett discovered that Samba incorrectly checked administrative\n privileges during creation of machine accounts. A remote attacker could\n possibly use this issue to bypass intended access restrictions in certain\n environments. This issue only affected Ubuntu 14.04 LTS, Ubuntu 15.04 and\n Ubuntu 15.10. (CVE-2015-8467)\n",
"id": "USN-2855-2",
"modified": "2026-04-22T07:36:32Z",
"published": "2016-02-16T13:19:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-2855-2"
},
{
"type": "REPORT",
"url": "https://launchpad.net/bugs/1545750"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "samba regression",
"upstream": []
}
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.