USN-2855-2

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Source
https://ubuntu.com/security/notices/USN-2855-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-2855-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-2855-2
Related
Published
2016-02-16T13:19:54.532346Z
Modified
2016-02-16T13:19:54.532346Z
Summary
samba regression
Details

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)

References

Affected packages

Ubuntu:14.04:LTS / samba

Package

Name
samba
Purl
pkg:deb/ubuntu/samba?arch=src?distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:4.1.6+dfsg-1ubuntu2.14.04.12

Affected versions

2:3.*

2:3.6.18-1ubuntu3

2:4.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "libnss-winbind"
        },
        {
            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "libnss-winbind-dbgsym"
        },
        {
            "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-smbpass-dbgsym"
        },
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "libpam-winbind"
        },
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            "binary_name": "libpam-winbind-dbgsym"
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            "binary_name": "libparse-pidl-perl"
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            "binary_name": "libparse-pidl-perl-dbgsym"
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            "binary_name": "libsmbclient"
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            "binary_name": "libsmbclient-dbgsym"
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            "binary_name": "libsmbsharemodes-dev"
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            "binary_name": "libsmbsharemodes0"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "python-samba"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
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            "binary_name": "registry-tools"
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            "binary_name": "samba-common"
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            "binary_name": "samba-common-bin"
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            "binary_name": "samba-common-bin-dbgsym"
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            "binary_name": "samba-dbg"
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            "binary_name": "samba-dbgsym"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "samba-doc"
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            "binary_name": "samba-dsdb-modules"
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            "binary_name": "samba-dsdb-modules-dbgsym"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "samba-libs"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "samba-libs-dbgsym"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "samba-testsuite"
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            "binary_name": "samba-testsuite-dbgsym"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "samba-vfs-modules"
        },
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            "binary_name": "samba-vfs-modules-dbgsym"
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            "binary_version": "2:4.1.6+dfsg-1ubuntu2.14.04.12",
            "binary_name": "smbclient"
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            "binary_name": "smbclient-dbgsym"
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            "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",
            "binary_name": "winbind-dbgsym"
        }
    ]
}