Slackware Linux update for bind



| Updated: 2017-05-06
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2015-3193
CVE-2015-8000
CVE-2015-8461
CWE-ID CWE-200
CWE-617
CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Slackware Linux
Operating systems & Components / Operating system

Vendor Slackware

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Information disclosure

EUVDB-ID: #VU2765

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-3193

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists in the Montgomery squaring implementation in crypto/bn/asm/x86_64-mont5.pl on the x86_64 platform, as used by the BN_mod_exp function, due to mishandling of carry propagation and producing incorrect output. A remote attacker can gain potentially sensitive private-key information via an attack against use of a (1) Diffie-Hellman (DH) or (2) Diffie-Hellman Ephemeral (DHE) ciphersuite.

Mitigation

Update the affected package bind.

Vulnerable software versions

Slackware Linux: 13.0 - 14.1

CPE2.3 External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966


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) 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

Update the affected package bind.

Vulnerable software versions

Slackware Linux: 13.0 - 14.1

CPE2.3 External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966


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.

3) Race condition

EUVDB-ID: #VU31832

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-2015-8461

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Race condition in resolver.c in named in ISC BIND 9.9.8 before 9.9.8-P2 and 9.10.3 before 9.10.3-P2 allows remote attackers to cause a denial of service (INSIST assertion failure and daemon exit) via unspecified vectors.

Mitigation

Update the affected package bind.

Vulnerable software versions

Slackware Linux: 13.0 - 14.1

CPE2.3 External links

https://www.slackware.com/security/viewer.php?l=slackware-security&y=2015&m=slackware-security.539966


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.



###SIDEBAR###