CVE-2015-3223

Publication date 16 December 2015

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
ldb 17.04 zesty
Fixed 2:1.1.24-1ubuntu1
16.10 yakkety
Fixed 2:1.1.24-1ubuntu1
16.04 LTS xenial
Fixed 2:1.1.24-1ubuntu1
15.10 wily
Fixed 2:1.1.20-2ubuntu0.1
15.04 vivid
Fixed 1:1.1.18-1ubuntu0.1
14.04 LTS trusty
Fixed 1:1.1.16-1ubuntu0.1
12.04 LTS precise
Fixed 1:1.1.4-1ubuntu0.1
samba 17.04 zesty
Fixed 2:4.3.3+dfsg-1ubuntu1
16.10 yakkety
Fixed 2:4.3.3+dfsg-1ubuntu1
16.04 LTS xenial
Fixed 2:4.3.3+dfsg-1ubuntu1
15.10 wily
Fixed 2:4.1.17+dfsg-4ubuntu3.1
15.04 vivid
Fixed 2:4.1.13+dfsg-4ubuntu3.1
14.04 LTS trusty
Fixed 2:4.1.6+dfsg-1ubuntu2.14.04.11
12.04 LTS precise
Not affected
samba4 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
15.10 wily Not in release
15.04 vivid Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life

Notes

mdeslaur

says 4.0.0 to 4.3.2, need to check precise may require ldb update

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
samba

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.3 · Medium

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

Other references

Access our resources on patching vulnerabilities