Fedora 23 update for libldb, libtalloc, libtdb, libtevent

1) Information disclosure

EUVDB-ID: #VU32350

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-5330

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

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 string lengths, which allows remote attackers to obtain sensitive information from daemon heap memory by sending crafted packets and then reading (1) an error message or (2) a database value.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 23

libtevent: before 0.9.26-1.fc23

libtdb: before 1.3.8-1.fc23

libtalloc: before 2.1.5-2.fc23

libldb: before 1.1.24-1.fc23

CPE2.3

• cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
• cpe:2.3:a:fedoraproject:libtevent:*:*:*:*:*:fedora:*:*
• cpe:2.3:a:fedoraproject:libtdb:*:*:*:*:*:fedora:*:*
• cpe:2.3:a:fedoraproject:libtalloc:*:*:*:*:*:fedora:*:*
• cpe:2.3:a:fedoraproject:libldb:*:*:*:*:*:fedora:*:*

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2015-b960ca78bf

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.