ID CVE-2007-6341
Summary Net/DNS/RR/ in Net::DNS 0.60 build 654, as used in packages such as SpamAssassin and OTRS, allows remote attackers to cause a denial of service (program "croak") via a crafted DNS response.
Vulnerable Configurations
  • cpe:2.3:a:net_dns:net_dns:0.60:build_654
Base: 5.0 (as of 21-12-2007 - 11:26)
  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
  • Overflow Binary Resource File
    An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the attacker access to the execution stack and execute arbitrary code in the target process. This attack pattern is a variant of standard buffer overflow attacks using an unexpected vector (binary files) to wrap its attack and open up a new attack vector. The attacker is required to either directly serve the binary content to the victim, or place it in a locale like a MP3 sharing application, for the victim to download. The attacker then is notified upon the download or otherwise locates the vulnerability opened up by the buffer overflow.
  • Buffer Overflow via Symbolic Links
    This type of attack leverages the use of symbolic links to cause buffer overflows. An attacker can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.
  • Overflow Variables and Tags
    This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The attacker crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.
  • Buffer Overflow via Parameter Expansion
    In this attack, the target software is given input that the attacker knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.
  • Buffer Overflow in an API Call
    This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An attacker who has access to an API may try to embed malicious code in the API function call and exploit a buffer overflow vulnerability in the function's implementation. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.
  • Buffer Overflow in Local Command-Line Utilities
    This attack targets command-line utilities available in a number of shells. An attacker can leverage a vulnerability found in a command-line utility to escalate privilege to root.
exploit-db via4
description Perl Net::DNS 0.48/0.59/0.60 DNS Response Remote Denial of Service Vulnerability. CVE-2007-6341. Dos exploit for linux platform
id EDB-ID:30895
last seen 2016-02-03
modified 2007-12-17
published 2007-12-17
reporter beSTORM
title Perl Net::DNS 0.48/0.59/0.60 - DNS Response Remote Denial of Service Vulnerability
nessus via4
  • NASL family Mandriva Local Security Checks
    description A vulnerability in the Net::DNS perl module was found that could allow remote attackers to cause a denial of service via a crafted DNS response. The updated packages have been patched to correct this issue.
    last seen 2019-02-21
    modified 2018-07-19
    plugin id 36350
    published 2009-04-23
    reporter Tenable
    title Mandriva Linux Security Advisory : perl-Net-DNS (MDVSA-2008:073)
  • NASL family Debian Local Security Checks
    description Several remote vulnerabilities have been discovered in libnet-dns-perl. The Common Vulnerabilities and Exposures project identifies the following problems : It was discovered that libnet-dns-perl generates very weak transaction IDs when sending queries (CVE-2007-3377 ). This update switches transaction ID generation to the Perl random generator, making prediction attacks more difficult. Compression loops in domain names resulted in an infinite loop in the domain name expander written in Perl (CVE-2007-3409 ). The Debian package uses an expander written in C by default, but this vulnerability has been addressed nevertheless. Decoding malformed A records could lead to a crash (via an uncaught Perl exception) of certain applications using libnet-dns-perl (CVE-2007-6341 ).
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 31426
    published 2008-03-13
    reporter Tenable
    title Debian DSA-1515-1 : libnet-dns-perl - several vulnerabilities
  • NASL family Ubuntu Local Security Checks
    description It was discovered that Net::DNS did not correctly validate the size of DNS replies. A remote attacker could send a specially crafted DNS response and cause applications using Net::DNS to abort, leading to a denial of service. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-11-28
    plugin id 31702
    published 2008-03-28
    reporter Tenable
    title Ubuntu 6.06 LTS / 6.10 : libnet-dns-perl vulnerability (USN-594-1)
refmap via4
bid 26902
debian DSA-1515
mandriva MDVSA-2008:073
sectrack 1019104
  • 29343
  • 29354
  • 29446
  • 29555
ubuntu USN-594-1
statements via4
contributor Joshua Bressers
lastmodified 2008-01-07
organization Red Hat
statement Red Hat does not consider this flaw to be a security issue. For more information please see:
Last major update 05-09-2008 - 17:32
Published 20-12-2007 - 18:46
Last modified 03-10-2018 - 17:51
Back to Top