CVE-2015-7540

Impact:
Moderate
Public Date:
2015-12-16
CWE:
CWE-770
Bugzilla:
1288451: CVE-2015-7540 samba: DoS to AD-DC due to insufficient checking of asn1 memory allocation
A denial of service flaw was found in the LDAP server provided by the AD DC in the Samba process daemon. A remote attacker could exploit this flaw by sending a specially crafted packet, which could cause the server to consume an excessive amount of memory and crash.

Find out more about CVE-2015-7540 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Gluster 3 Samba on RHEL-6 (samba) RHSA-2016:0015 2016-01-08
Red Hat Enterprise Linux 6 (samba4) RHSA-2016:0010 2016-01-07
Red Hat Enterprise Linux 7 RHBA-2015:2258 2015-11-19

Affected Packages State

Platform Package State
Red Hat Gluster Storage 3.0 samba Not affected
Red Hat Enterprise Linux 6 samba Not affected
Red Hat Enterprise Linux 5 samba Not affected
Red Hat Enterprise Linux 5 samba3x Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

Red Hat would like to thank the Samba project for reporting this issue.

External References

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