UpHeron
All vulnerabilities

Servers and applications

CVE-2015-3223

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.

Severity
Medium 5.3
Published
29 Dec 2015
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
6.9% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
CWE-189CWE-399
Attack
Over the network · No login needed · No user action needed
Attacker can
Slow it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • Version 4.3.2
  • Version 4.3.1
  • Version 4.3.0
  • Version 4.2.6
All 57 release lines
  • Version 4.0.0
  • Version 4.0.1
  • Version 4.0.2
  • Version 4.0.3
  • Version 4.0.4
  • Version 4.0.5
  • Version 4.0.6
  • Version 4.0.7
  • Version 4.0.8
  • Version 4.0.9
  • Version 4.0.10
  • Version 4.0.11
  • Version 4.0.12
  • Version 4.0.13
  • Version 4.0.14
  • Version 4.0.15
  • Version 4.0.16
  • Version 4.0.17
  • Version 4.0.18
  • Version 4.0.19
  • Version 4.0.20
  • Version 4.0.21
  • Version 4.0.22
  • Version 4.0.23
  • Version 4.0.24
  • Version 4.1.0
  • Version 4.1.1
  • Version 4.1.2
  • Version 4.1.3
  • Version 4.1.4
  • Version 4.1.5
  • Version 4.1.6
  • Version 4.1.7
  • Version 4.1.8
  • Version 4.1.9
  • Version 4.1.10
  • Version 4.1.11
  • Version 4.1.12
  • Version 4.1.13
  • Version 4.1.14
  • Version 4.1.15
  • Version 4.1.16
  • Version 4.1.17
  • Version 4.1.18
  • Version 4.1.19
  • Version 4.1.20
  • Version 4.1.21
  • Version 4.2.0
  • Version 4.2.1
  • Version 4.2.2
  • Version 4.2.3
  • Version 4.2.4
  • Version 4.2.5
  • Version 4.2.6
  • Version 4.3.0
  • Version 4.3.1
  • Version 4.3.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-3223
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-3223