ID CVE-2014-3000
Summary The TCP reassembly function in the inet module in FreeBSD 8.3 before p16, 8.4 before p9, 9.1 before p12, 9.2 before p5, and 10.0 before p2 allows remote attackers to cause a denial of service (undefined memory access and system crash) or possibly read system memory via multiple crafted packets, related to moving a reassemble queue entry to the segment list when the queue is full.
References
Vulnerable Configurations
  • FreeBSD 9.2
    cpe:2.3:o:freebsd:freebsd:9.2
  • FreeBSD 10.0
    cpe:2.3:o:freebsd:freebsd:10.0
  • FreeBSD 9.1
    cpe:2.3:o:freebsd:freebsd:9.1
  • FreeBSD 8.3
    cpe:2.3:o:freebsd:freebsd:8.3
  • FreeBSD 8.4
    cpe:2.3:o:freebsd:freebsd:8.4
CVSS
Base: 7.8 (as of 05-05-2014 - 10:50)
Impact:
Exploitability:
CWE CWE-119
CAPEC
  • 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.
Access
VectorComplexityAuthentication
NETWORK MEDIUM NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL NONE COMPLETE
nessus via4
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DSA-2952.NASL
    description Several vulnerabilities have been discovered in the FreeBSD kernel that may lead to a denial of service or possibly disclosure of kernel memory. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2014-1453 A remote, authenticated attacker could cause the NFS server become deadlocked, resulting in a denial of service. - CVE-2014-3000 : An attacker who can send a series of specifically crafted packets with a connection could cause a denial of service situation by causing the kernel to crash. Additionally, because the undefined on stack memory may be overwritten by other kernel threads, while difficult, it may be possible for an attacker to construct a carefully crafted attack to obtain portion of kernel memory via a connected socket. This may result in the disclosure of sensitive information such as login credentials, etc. before or even without crashing the system. - CVE-2014-3880 A local attacker can trigger a kernel crash (triple fault) with potential data loss, related to the execve/fexecve system calls. Reported by Ivo De Decker.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 74374
    published 2014-06-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=74374
    title Debian DSA-2952-1 : kfreebsd-9 - security update
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_6D472244600711E6A6C314DAE9D210B8.NASL
    description FreeBSD may add a reassemble queue entry on the stack into the segment list when the reassembly queue reaches its limit. The memory from the stack is undefined after the function returns. Subsequent iterations of the reassembly function will attempt to access this entry. Impact : An attacker who can send a series of specifically crafted packets with a connection could cause a denial of service situation by causing the kernel to crash. Additionally, because the undefined on stack memory may be overwritten by other kernel threads, while extremely difficult, it may be possible for an attacker to construct a carefully crafted attack to obtain portion of kernel memory via a connected socket. This may result in the disclosure of sensitive information such as login credentials, etc. before or even without crashing the system.
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 92900
    published 2016-08-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=92900
    title FreeBSD : FreeBSD -- TCP reassembly vulnerability (6d472244-6007-11e6-a6c3-14dae9d210b8)
  • NASL family CGI abuses
    NASL id PFSENSE_SA-14_05.NASL
    description According to its self-reported version number, the remote pfSense install is prior to 2.1.3. It is, therefore, affected by a denial of service vulnerability as stated in the referenced vendor advisory.
    last seen 2019-02-21
    modified 2018-11-28
    plugin id 106489
    published 2018-01-31
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=106489
    title pfSense < 2.1.3 Remote Denial of Service Vulnerability (SA-14_05)
refmap via4
bid 67153
debian DSA-2952
freebsd FreeBSD-SA-14:08
sectrack 1030172
secunia
  • 58293
  • 59034
Last major update 21-06-2014 - 00:41
Published 02-05-2014 - 10:55
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