CVE-2015-5296

MEDIUM

Samba <4.1.22-4.3.3 - Info Disclosure

Title source: llm

Description

Samba 3.x and 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3 supports connections that are encrypted but unsigned, which allows man-in-the-middle attackers to conduct encrypted-to-unencrypted downgrade attacks by modifying the client-server data stream, related to clidfs.c, libsmb_server.c, and smbXcli_base.c.

References (25)

[Various Sources] https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=1ba49b8f389eda3414b14410c7fbcb4041ca06b1

[Various Sources] https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=a819d2b440aafa3138d95ff6e8b824da885a70e9

[Various Sources] https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=d724f835acb9f4886c0001af32cd325dbbf1f895

[Mailing List, Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html

[Mailing List, Third Party Advisory] http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00002.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00017.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html

[Third Party Advisory] http://www.debian.org/security/2016/dsa-3433

[Third Party Advisory] http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

[Third Party Advisory] http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/79732

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1034493

[Third Party Advisory] http://www.ubuntu.com/usn/USN-2855-1

... and 5 more

Scores

CVSS v3 5.4

EPSS 0.0337

EPSS Percentile 87.2%

Attack Vector NETWORK

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

Classification

CWE

CWE-20

Status draft

Affected Products (7)

samba/samba < 4.1.22

debian/debian_linux

debian/debian_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

Timeline

Published Dec 29, 2015

Tracked Since Feb 18, 2026