CVE-2015-3223

Description

The ldb_wildcard_compare function in ldb_match.c in ldb before 1.1.24, as used in the AD LDAP server in Samba 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, mishandles certain zero values, which allows remote attackers to cause a denial of service (infinite loop) via crafted packets.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 11.99% Top 10%
Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory debian.org Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory samba.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1290287
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html vendor advisory
http://www.ubuntu.com/usn/USN-2855-2 vendor advisory
https://www.samba.org/samba/security/CVE-2015-3223.html vendor advisory
http://www.ubuntu.com/usn/USN-2856-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html vendor advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html vendor advisory
http://www.securityfocus.com/bid/79731 vdb entry
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=ec504dbf69636a554add1f3d5703dd6c3ad450b8
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html vendor advisory
http://www.securitytracker.com/id/1034493 vdb entry
http://www.debian.org/security/2016/dsa-3433 vendor advisory
https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=aa6c27148b9d3f8c1e4fdd5dd46bfecbbd0ca465
https://security.gentoo.org/glsa/201612-47 vendor advisory
http://www.ubuntu.com/usn/USN-2855-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2015-3223?
CVE-2015-3223 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3223?
To fix CVE-2015-3223, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2015-3223 being actively exploited in the wild?
It is possible that CVE-2015-3223 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~12% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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