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Vulnerability Details : CVE-2021-36159

libfetch before 2021-07-26, as used in apk-tools, xbps, and other products, mishandles numeric strings for the FTP and HTTP protocols. The FTP passive mode implementation allows an out-of-bounds read because strtol is used to parse the relevant numbers into address bytes. It does not check if the line ends prematurely. If it does, the for-loop condition checks for the '\0' terminator one byte too late.
Publish Date : 2021-08-03 Last Update Date : 2021-10-18
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- CVSS Scores & Vulnerability Types

CVSS Score
6.4
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 125

- Products Affected By CVE-2021-36159

# Product Type Vendor Product Version Update Edition Language
1 Application Freebsd Libfetch * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Freebsd Libfetch 1

- References For CVE-2021-36159

https://gitlab.alpinelinux.org/alpine/apk-tools/-/issues/10749
https://github.com/freebsd/freebsd-src/commits/main/lib/libfetch
https://lists.apache.org/thread.html/[email protected]%3Cusers.kafka.apache.org%3E
MLIST [kafka-users] 20210831 Security vulnerabilities in kafka:2.13-2.6.0/2.7.0 docker image
https://lists.apache.org/thread.html/[email protected]%3Cusers.kafka.apache.org%3E
MLIST [kafka-users] 20210901 Re: [EXTERNAL] Re: Security vulnerabilities in kafka:2.13-2.6.0/2.7.0 docker image
https://lists.apache.org/thread.html/[email protected]%3Cdev.kafka.apache.org%3E
MLIST [kafka-dev] 20210901 Re: [EXTERNAL] Re: Security vulnerabilities in kafka:2.13-2.6.0/2.7.0 docker image
https://lists.apache.org/thread.html/[email protected]%3Cdev.kafka.apache.org%3E
MLIST [kafka-dev] 20210831 Security vulnerabilities in kafka:2.13-2.6.0/2.7.0 docker image

- Metasploit Modules Related To CVE-2021-36159

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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