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Vulnerability record · CVE-2015-7540 · published 29 December 2015

CVE-2015-7540: Samba vulnerability

Samba · Samba

The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.

7.5 CVSS 3.1 High EPSS 7.1% · top 6.0% CWE-399 · CWE-399
7.5CVSS 3.1 base score, v2 5.0
7.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
28References
17 Jun 2026Last modified by NVD

Description

The LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html Mailing ListThird Party Advisory
http://www.debian.org/security/2016/dsa-3433 Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.securityfocus.com/bid/79736 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034492 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2855-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2855-2 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1288451 Issue TrackingThird Party Advisory
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=530d50a1abdcdf4d1775652d4c456c1274d83d8d
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=9d989c9dd7a5b92d0c5d65287935471b83b6e884
https://security.gentoo.org/glsa/201612-47 Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7540.html Vendor Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html Mailing ListThird Party Advisory
http://www.debian.org/security/2016/dsa-3433 Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html Third Party Advisory
http://www.securityfocus.com/bid/79736 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1034492 Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-2855-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-2855-2 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1288451 Issue TrackingThird Party Advisory
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=530d50a1abdcdf4d1775652d4c456c1274d83d8d
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=9d989c9dd7a5b92d0c5d65287935471b83b6e884
https://security.gentoo.org/glsa/201612-47 Third Party Advisory
https://www.samba.org/samba/security/CVE-2015-7540.html Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2015-7540), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.