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CVE-2018-5737— BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other undesirable behavior, even if serve-stale is not enabled.

Quick assessment

Affected
ISC BIND 9
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ISC BIND是美国Internet Systems Consortium（ISC）公司所维护的一套实现了DNS协议的开源软件。 ISC BIND 9.12.0版本和9.12.1版本中serve-stale功能的实现存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Moderate EPSS 10.44% · P96

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2018-5737

Vulnerability Information
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Vulnerability Title
BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other undesirable behavior, even if serve-stale is not enabled.
Source: CVE Program / CVE List V5
Vulnerability Description
A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c, even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause undesirable behavior from named, such as a recursion loop or excessive logging. Deliberate exploitation of this condition could cause operational problems depending on the particular manifestation -- either degradation or denial of service. Affects BIND 9.12.0 and 9.12.1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
ISC BIND 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC BIND是美国Internet Systems Consortium（ISC）公司所维护的一套实现了DNS协议的开源软件。 ISC BIND 9.12.0版本和9.12.1版本中serve-stale功能的实现存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ISC BIND 9 9.12.0 and 9.12.1 -

II. Public POCs for CVE-2018-5737

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III. Intelligence Information for CVE-2018-5737

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Vendor Advisories for CVE-2018-5737 (3)

Other References for CVE-2018-5737 (1)

Same Patch Batch · ISC · 2019-01-16 · 18 CVEs total

CVE-2017-3143 An error in TSIG authentication can permit unauthorized dynamic updates
CVE-2018-5741 Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their
CVE-2018-5740 A flaw in the "deny-answer-aliases" feature can cause an assertion failure in named
CVE-2018-5739 Failure to release memory may exhaust system resources
CVE-2018-5738 Some versions of BIND can improperly permit recursive query service to unauthorized client
CVE-2018-5734 A malformed request can trigger an assertion failure in badcache.c
CVE-2018-5733 A malicious client can overflow a reference counter in ISC dhcpd
CVE-2017-3145 Improper fetch cleanup sequencing in the resolver can cause named to crash
CVE-2017-3144 Failure to properly clean up closed OMAPI connections can exhaust available sockets
CVE-2016-9778 An error handling certain queries using the nxdomain-redirect feature could cause a REQUIR
CVE-2017-3142 An error in TSIG authentication can permit unauthorized zone transfers
CVE-2017-3141 Windows service and uninstall paths are not quoted when BIND is installed
CVE-2017-3140 An error processing RPZ rules can cause named to loop endlessly after handling a query
CVE-2017-3138 named exits with a REQUIRE assertion failure if it receives a null command string on its c
CVE-2017-3137 A response packet can cause a resolver to terminate when processing an answer containing a
CVE-2017-3136 An error handling synthesized records could cause an assertion failure when using DNS64 wi
CVE-2017-3135 Combination of DNS64 and RPZ Can Lead to Crash

IV. Related Vulnerabilities

Same product: BIND 9
Same vendor: ISC

V. Comments for CVE-2018-5737

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