Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2018-5733— A malicious client can overflow a reference counter in ISC dhcpd

EPSS 10.26% · P93
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2018-5733

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
A malicious client can overflow a reference counter in ISC dhcpd
Source: NVD (National Vulnerability Database)
Vulnerability Description
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
ISC DHCP 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ISC DHCP是美国Internet Systems Consortium（ISC）公司的一套开源的动态主机配置协议服务器软件。 ISC DHCP中存在安全漏洞。远程攻击者可通过发送大量的流量利用该漏洞造成拒绝服务（内存耗尽或服务器崩溃）。以下版本受到影响：ISC DHCP 4.1.0版本至4.1-ESV-R15版本，4.2.0版本至4.2.8版本，4.3.0版本至4.3.6版本，4.4.0版本。
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

VendorProductAffected VersionsCPESubscribe
ISCISC DHCP ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0 -

II. Public POCs for CVE-2018-5733

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2018-5733

请登录查看更多情报信息。

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

CVE-2017-3143An error in TSIG authentication can permit unauthorized dynamic updates
CVE-2018-5741Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their
CVE-2018-5740A flaw in the "deny-answer-aliases" feature can cause an assertion failure in named
CVE-2018-5739Failure to release memory may exhaust system resources
CVE-2018-5738Some versions of BIND can improperly permit recursive query service to unauthorized client
CVE-2018-5737BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other
CVE-2018-5734A malformed request can trigger an assertion failure in badcache.c
CVE-2017-3145Improper fetch cleanup sequencing in the resolver can cause named to crash
CVE-2017-3144Failure to properly clean up closed OMAPI connections can exhaust available sockets
CVE-2016-9778An error handling certain queries using the nxdomain-redirect feature could cause a REQUIR
CVE-2017-3142An error in TSIG authentication can permit unauthorized zone transfers
CVE-2017-3141Windows service and uninstall paths are not quoted when BIND is installed
CVE-2017-3140An error processing RPZ rules can cause named to loop endlessly after handling a query
CVE-2017-3138named exits with a REQUIRE assertion failure if it receives a null command string on its c
CVE-2017-3137A response packet can cause a resolver to terminate when processing an answer containing a
CVE-2017-3136An error handling synthesized records could cause an assertion failure when using DNS64 wi
CVE-2017-3135Combination of DNS64 and RPZ Can Lead to Crash

IV. Related Vulnerabilities

Same product: ISC DHCP
Same vendor: ISC

V. Comments for CVE-2018-5733

No comments yet

Leave a comment