Gentoo update for BIND
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 10 |
| CVE-ID | CVE-2016-9131 CVE-2016-9147 CVE-2016-9444 CVE-2016-9778 CVE-2017-3135 CVE-2017-3136 CVE-2017-3137 CVE-2017-3138 CVE-2017-3140 CVE-2017-3141 |
| CWE-ID | CWE-20 CWE-476 CWE-617 CWE-428 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #10 is available. |
| Vulnerable software Subscribe |
Gentoo Linux Operating systems & Components / Operating system |
| Vendor | Gentoo |
Security Bulletin
This security bulletin contains information about 10 vulnerabilities.
1) Input validation error
EUVDB-ID: #VU4347
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9131
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause denial of service conditions.
The vulnerability exists due to assertion failure when processing DNS responses. A remote attacker can send a malformed response to an RTYPE ANY query, trigger assertion failure and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against vulnerable application.
MitigationUpdate the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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) Input validation error
EUVDB-ID: #VU4349
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9147
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause denial of service conditions.
The vulnerability exists due to assertion failure when processing input data. A remote attacker can send a response containing an inconsistency among the DNSSEC-related RRsets, trigger assertion failure and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against vulnerable application.
Mitigation
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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) Input validation error
EUVDB-ID: #VU4350
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9444
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause denial of service conditions.
The vulnerability exists due to assertion failure when processing input data. A remote attacker can send a specially crafted DS resource record in an answer, trigger assertion failure and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against vulnerable application.
Mitigation
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
4) Improper input validation
EUVDB-ID: #VU4351
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2016-9778
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to cause denial of service conditions.
The vulnerability exists due to assertion failure when processing input data. A remote attacker can send a specially crafted query to the target system that uses the nxdomain-redirect feature to cover a zone for which it provides authoritative service, trigger assertion failure and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against vulnerable application.
Mitigation
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
5) NULL pointer dereference
EUVDB-ID: #VU5674
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3135
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference error when parsing DNS queries, if ISC BIND is configured with Response Policy Zones (RPZ) and DNS64 to rewrite query responses. A remote unauthenticated attacker can send specially crafted DNS queries, trigger NULL pointer dereference and cause denial of service.
Successful exploitation of the vulnerability will result in DoS attack against affected daemon.
MitigationUpdate the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
6) Assertion failure
EUVDB-ID: #VU16152
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3136
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the servers are configured to use DNS64 and if the option "break-dnssec yes;" is in use. A remote attacker can supply specially crafted queries, if it was configured to use the DNS64 feature and other preconditions were met, trigger a server using DNS64 assertion failure and cause the service to crash.
MitigationUpdate the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
7) Assertion failure
EUVDB-ID: #VU7227
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3137
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing query response containing CNAME or DNAME resource records in an unusual order in BIND. A remote attacker can trigger assertion failure and crash BIND application.
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
8) Assertion failure
EUVDB-ID: #VU16151
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3138
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to named contains a feature which allows operators to issue commands to a running server by communicating with the server process over a control channel, using a utility program such as rndc.. A remote attacker can send some versions of named a null command string, trigger a REQUIRE assertion failure and cause the service to crash.
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
9) Improper input validation
EUVDB-ID: #VU7091
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-3140
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when processing Response Policy Zones (RPZ) rules, when NSDNAME or NSIP policy rules are used. A remote attacker can trigger the affected server to enter an endless loop and repeatedly query a set of authoritative nameservers.
Successful exploitation of the vulnerability may allow an attacker to perform a denial of service attack.
MitigationUpdate the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
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.
10) Unquoted search path
EUVDB-ID: #VU7092
Risk: Low
CVSSv3.1: 6.7 [CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-3141
CWE-ID:
CWE-428 - Unquoted Search Path or Element
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to unquotes search path in BIND installer for Windows during installation process. An attacker with ability to place specially crafted library into the folder, from which the BIND installer is executed, can obtain elevated privileges on the system.
Only Windows systems are affected by this issue.
Update the affected packages.
net-dns/bind to version:
Gentoo Linux: All versions
External linkshttp://security.gentoo.org/glsa/201708-01
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
