Fedora 23 update for bind, bind-dyndb-ldap, dnsperf

Published: 2015-12-16 | Updated: 2025-04-24

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2015-8000 CVE-2015-8461
CWE-ID	CWE-617 CWE-362
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system dnsperf Operating systems & Components / Operating system package or component bind-dyndb-ldap Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Assertion failure

EUVDB-ID: #VU3848

Risk: Medium

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

CVE-ID: CVE-2015-8000

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

A remote attacker can trigger denial of service (DoS) conditions.

The vulnerability exists due to a parsing error when processing incoming responses within db.c file. A remote attacker who can cause a server to request a record with a malformed class attribute can use this bug to trigger a REQUIRE assertion, causing named to exit and denying service to clients.

Successful exploitation of this vulnerability may allow an attacker to perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 23

dnsperf: before 2.0.0.0-19.fc23

bind-dyndb-ldap: before 8.0-4.fc23

bind: before 9.10.3-7.P2.fc23

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2015-09bf9e06ea

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.

2) Race condition

EUVDB-ID: #VU31832