ID CVE-2016-3948
Summary Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.
References
Vulnerable Configurations
  • squid-cache.org Squid 4.0.6
    cpe:2.3:a:squid-cache:squid:4.0.6
  • cpe:2.3:a:squid-cache:squid:4.0.7
    cpe:2.3:a:squid-cache:squid:4.0.7
  • squid-cache.org Squid 4.0.5
    cpe:2.3:a:squid-cache:squid:4.0.5
  • squid-cache.org Squid 4.0.4
    cpe:2.3:a:squid-cache:squid:4.0.4
  • squid-cache.org Squid 4.0.3
    cpe:2.3:a:squid-cache:squid:4.0.3
  • squid-cache.org Squid 4.0.2
    cpe:2.3:a:squid-cache:squid:4.0.2
  • squid-cache.org Squid 4.0.1
    cpe:2.3:a:squid-cache:squid:4.0.1
  • squid-cache.org Squid 3.2.7
    cpe:2.3:a:squid-cache:squid:3.2.7
  • cpe:2.3:a:squid-cache:squid:3.5.9
    cpe:2.3:a:squid-cache:squid:3.5.9
  • squid-cache.org Squid 3.5.1
    cpe:2.3:a:squid-cache:squid:3.5.1
  • squid-cache.org Squid 3.5.0.4
    cpe:2.3:a:squid-cache:squid:3.5.0.4
  • squid-cache.org Squid 3.5.0.3
    cpe:2.3:a:squid-cache:squid:3.5.0.3
  • squid-cache.org Squid 3.5.0.2
    cpe:2.3:a:squid-cache:squid:3.5.0.2
  • squid-cache.org Squid 3.5.0.1
    cpe:2.3:a:squid-cache:squid:3.5.0.1
  • squid-cache.org Squid 3.5.2
    cpe:2.3:a:squid-cache:squid:3.5.2
  • cpe:2.3:a:squid-cache:squid:3.5.10
    cpe:2.3:a:squid-cache:squid:3.5.10
  • cpe:2.3:a:squid-cache:squid:3.5.11
    cpe:2.3:a:squid-cache:squid:3.5.11
  • cpe:2.3:a:squid-cache:squid:3.5.12
    cpe:2.3:a:squid-cache:squid:3.5.12
  • cpe:2.3:a:squid-cache:squid:3.5.13
    cpe:2.3:a:squid-cache:squid:3.5.13
  • cpe:2.3:a:squid-cache:squid:3.5.14
    cpe:2.3:a:squid-cache:squid:3.5.14
  • cpe:2.3:a:squid-cache:squid:3.5.3
    cpe:2.3:a:squid-cache:squid:3.5.3
  • cpe:2.3:a:squid-cache:squid:3.5.4
    cpe:2.3:a:squid-cache:squid:3.5.4
  • cpe:2.3:a:squid-cache:squid:3.5.5
    cpe:2.3:a:squid-cache:squid:3.5.5
  • cpe:2.3:a:squid-cache:squid:3.5.6
    cpe:2.3:a:squid-cache:squid:3.5.6
  • cpe:2.3:a:squid-cache:squid:3.5.7
    cpe:2.3:a:squid-cache:squid:3.5.7
  • cpe:2.3:a:squid-cache:squid:3.5.8
    cpe:2.3:a:squid-cache:squid:3.5.8
  • squid-cache.org Squid 3.4.9
    cpe:2.3:a:squid-cache:squid:3.4.9
  • squid-cache.org Squid 3.4.8
    cpe:2.3:a:squid-cache:squid:3.4.8
  • squid-cache.org Squid 3.4.4
    cpe:2.3:a:squid-cache:squid:3.4.4
  • squid-cache.org Squid 3.4.3
    cpe:2.3:a:squid-cache:squid:3.4.3
  • squid-cache.org Squid 3.4.2
    cpe:2.3:a:squid-cache:squid:3.4.2
  • squid-cache.org Squid 3.4.13
    cpe:2.3:a:squid-cache:squid:3.4.13
  • squid-cache.org Squid 3.4.12
    cpe:2.3:a:squid-cache:squid:3.4.12
  • squid-cache.org Squid 3.4.11
    cpe:2.3:a:squid-cache:squid:3.4.11
  • squid-cache.org Squid 3.4.10
    cpe:2.3:a:squid-cache:squid:3.4.10
  • squid-cache.org Squid 3.4.1
    cpe:2.3:a:squid-cache:squid:3.4.1
  • squid-cache.org Squid 3.4.0.3
    cpe:2.3:a:squid-cache:squid:3.4.0.3
  • squid-cache.org Squid 3.4.0.2
    cpe:2.3:a:squid-cache:squid:3.4.0.2
  • squid-cache.org Squid 3.4.0.1
    cpe:2.3:a:squid-cache:squid:3.4.0.1
  • squid-cache.org Squid 3.3.9
    cpe:2.3:a:squid-cache:squid:3.3.9
  • squid-cache.org Squid 3.3.8
    cpe:2.3:a:squid-cache:squid:3.3.8
  • squid-cache.org Squid 3.3.7
    cpe:2.3:a:squid-cache:squid:3.3.7
  • squid-cache.org Squid 3.3.6
    cpe:2.3:a:squid-cache:squid:3.3.6
  • squid-cache.org Squid 3.3.5
    cpe:2.3:a:squid-cache:squid:3.3.5
  • squid-cache.org Squid 3.3.4
    cpe:2.3:a:squid-cache:squid:3.3.4
  • squid-cache.org Squid 3.3.3
    cpe:2.3:a:squid-cache:squid:3.3.3
  • squid-cache.org Squid 3.3.2
    cpe:2.3:a:squid-cache:squid:3.3.2
  • squid-cache.org Squid 3.3.13
    cpe:2.3:a:squid-cache:squid:3.3.13
  • squid-cache.org Squid 3.3.12
    cpe:2.3:a:squid-cache:squid:3.3.12
  • squid-cache.org Squid 3.3.11
    cpe:2.3:a:squid-cache:squid:3.3.11
  • squid-cache.org Squid 3.3.10
    cpe:2.3:a:squid-cache:squid:3.3.10
  • squid-cache.org Squid 3.3.1
    cpe:2.3:a:squid-cache:squid:3.3.1
  • squid-cache.org Squid 3.3.0.3
    cpe:2.3:a:squid-cache:squid:3.3.0.3
  • squid-cache.org Squid 3.3.0.2
    cpe:2.3:a:squid-cache:squid:3.3.0.2
  • squid-cache.org Squid 3.3.0
    cpe:2.3:a:squid-cache:squid:3.3.0
  • squid-cache.org Squid 3.2.9
    cpe:2.3:a:squid-cache:squid:3.2.9
  • squid-cache.org Squid 3.2.8
    cpe:2.3:a:squid-cache:squid:3.2.8
  • cpe:2.3:a:squid-cache:squid:3.5.15
    cpe:2.3:a:squid-cache:squid:3.5.15
  • squid-cache.org Squid 3.2.6
    cpe:2.3:a:squid-cache:squid:3.2.6
  • squid-cache.org Squid 3.2.5
    cpe:2.3:a:squid-cache:squid:3.2.5
  • squid-cache.org Squid 3.2.4
    cpe:2.3:a:squid-cache:squid:3.2.4
  • squid-cache.org Squid 3.2.3
    cpe:2.3:a:squid-cache:squid:3.2.3
  • squid-cache.org Squid 3.2.2
    cpe:2.3:a:squid-cache:squid:3.2.2
  • squid-cache.org Squid 3.2.13
    cpe:2.3:a:squid-cache:squid:3.2.13
  • squid-cache.org Squid 3.2.12
    cpe:2.3:a:squid-cache:squid:3.2.12
  • squid-cache.org Squid 3.2.11
    cpe:2.3:a:squid-cache:squid:3.2.11
  • squid-cache.org Squid 3.2.10
    cpe:2.3:a:squid-cache:squid:3.2.10
  • squid-cache.org Squid 3.2.1
    cpe:2.3:a:squid-cache:squid:3.2.1
  • squid-cache.org Squid 3.2.0.9
    cpe:2.3:a:squid-cache:squid:3.2.0.9
  • squid-cache.org Squid 3.2.0.8
    cpe:2.3:a:squid-cache:squid:3.2.0.8
  • squid-cache.org Squid 3.2.0.7
    cpe:2.3:a:squid-cache:squid:3.2.0.7
  • squid-cache.org Squid 3.2.0.6
    cpe:2.3:a:squid-cache:squid:3.2.0.6
  • squid-cache.org Squid 3.2.0.5
    cpe:2.3:a:squid-cache:squid:3.2.0.5
  • squid-cache.org Squid 3.2.0.4
    cpe:2.3:a:squid-cache:squid:3.2.0.4
  • squid-cache.org Squid 3.2.0.3
    cpe:2.3:a:squid-cache:squid:3.2.0.3
  • squid-cache.org Squid 3.2.0.2
    cpe:2.3:a:squid-cache:squid:3.2.0.2
  • squid-cache.org Squid 3.2.0.19
    cpe:2.3:a:squid-cache:squid:3.2.0.19
  • squid-cache.org Squid 3.2.0.18
    cpe:2.3:a:squid-cache:squid:3.2.0.18
  • squid-cache.org Squid 3.2.0.17
    cpe:2.3:a:squid-cache:squid:3.2.0.17
  • squid-cache.org Squid 3.2.0.16
    cpe:2.3:a:squid-cache:squid:3.2.0.16
  • squid-cache.org Squid 3.2.0.15
    cpe:2.3:a:squid-cache:squid:3.2.0.15
  • squid-cache.org Squid 3.2.0.14
    cpe:2.3:a:squid-cache:squid:3.2.0.14
  • squid-cache.org Squid 3.2.0.13
    cpe:2.3:a:squid-cache:squid:3.2.0.13
  • squid-cache.org Squid 3.2.0.12
    cpe:2.3:a:squid-cache:squid:3.2.0.12
  • squid-cache.org Squid 3.2.0.11
    cpe:2.3:a:squid-cache:squid:3.2.0.11
  • squid-cache.org Squid 3.2.0.10
    cpe:2.3:a:squid-cache:squid:3.2.0.10
  • squid-cache.org Squid 3.2.0.1
    cpe:2.3:a:squid-cache:squid:3.2.0.1
  • squid-cache.org Squid 3.1.9
    cpe:2.3:a:squid-cache:squid:3.1.9
  • squid-cache.org Squid 3.1.8
    cpe:2.3:a:squid-cache:squid:3.1.8
  • squid-cache.org Squid 3.1.7
    cpe:2.3:a:squid-cache:squid:3.1.7
  • squid-cache.org Squid 3.1.6
    cpe:2.3:a:squid-cache:squid:3.1.6
  • squid-cache.org Squid 3.1.5.1
    cpe:2.3:a:squid-cache:squid:3.1.5.1
  • squid-cache.org Squid 3.1.5
    cpe:2.3:a:squid-cache:squid:3.1.5
  • squid-cache.org Squid 3.1.4
    cpe:2.3:a:squid-cache:squid:3.1.4
  • squid-cache.org Squid 3.1.3
    cpe:2.3:a:squid-cache:squid:3.1.3
  • squid-cache.org Squid 3.1.2
    cpe:2.3:a:squid-cache:squid:3.1.2
  • squid-cache.org Squid 3.1.15
    cpe:2.3:a:squid-cache:squid:3.1.15
  • squid-cache.org Squid 3.1.14
    cpe:2.3:a:squid-cache:squid:3.1.14
  • squid-cache.org Squid 3.1.13
    cpe:2.3:a:squid-cache:squid:3.1.13
  • squid-cache.org Squid 3.1.12
    cpe:2.3:a:squid-cache:squid:3.1.12
  • squid-cache.org Squid 3.1.11
    cpe:2.3:a:squid-cache:squid:3.1.11
  • squid-cache.org Squid 3.1.10
    cpe:2.3:a:squid-cache:squid:3.1.10
  • squid-cache.org Squid 3.1.1
    cpe:2.3:a:squid-cache:squid:3.1.1
  • squid-cache.org Squid 3.1.0.9
    cpe:2.3:a:squid-cache:squid:3.1.0.9
  • squid-cache.org Squid 3.1.0.8
    cpe:2.3:a:squid-cache:squid:3.1.0.8
  • squid-cache.org Squid 3.1.0.7
    cpe:2.3:a:squid-cache:squid:3.1.0.7
  • squid-cache.org Squid 3.1.0.6
    cpe:2.3:a:squid-cache:squid:3.1.0.6
  • squid-cache.org Squid 3.1.0.5
    cpe:2.3:a:squid-cache:squid:3.1.0.5
  • squid-cache.org Squid 3.1.0.4
    cpe:2.3:a:squid-cache:squid:3.1.0.4
  • squid-cache.org Squid 3.1.0.3
    cpe:2.3:a:squid-cache:squid:3.1.0.3
  • squid-cache.org Squid 3.1.0.2
    cpe:2.3:a:squid-cache:squid:3.1.0.2
  • squid-cache.org Squid 3.1.0.18
    cpe:2.3:a:squid-cache:squid:3.1.0.18
  • squid-cache.org Squid 3.1.0.17
    cpe:2.3:a:squid-cache:squid:3.1.0.17
  • squid-cache.org Squid 3.1.0.16
    cpe:2.3:a:squid-cache:squid:3.1.0.16
  • squid-cache.org Squid 3.1.0.15
    cpe:2.3:a:squid-cache:squid:3.1.0.15
  • squid-cache.org Squid 3.1.0.14
    cpe:2.3:a:squid-cache:squid:3.1.0.14
  • squid-cache.org Squid 3.1.0.13
    cpe:2.3:a:squid-cache:squid:3.1.0.13
  • squid-cache.org Squid 3.1.0.12
    cpe:2.3:a:squid-cache:squid:3.1.0.12
  • squid-cache.org Squid 3.1.0.11
    cpe:2.3:a:squid-cache:squid:3.1.0.11
  • squid-cache.org Squid 3.1.0.10
    cpe:2.3:a:squid-cache:squid:3.1.0.10
  • squid-cache.org Squid 3.1.0.1
    cpe:2.3:a:squid-cache:squid:3.1.0.1
  • squid-cache.org Squid 3.1
    cpe:2.3:a:squid-cache:squid:3.1
  • squid-cache.org Squid 3.0.stable9
    cpe:2.3:a:squid-cache:squid:3.0.stable9
  • squid-cache.org Squid 3.0.stable8
    cpe:2.3:a:squid-cache:squid:3.0.stable8
  • squid-cache.org Squid 3.0.stable7
    cpe:2.3:a:squid-cache:squid:3.0.stable7
  • squid-cache.org Squid 3.0.stable6
    cpe:2.3:a:squid-cache:squid:3.0.stable6
  • squid-cache.org Squid 3.0.stable5
    cpe:2.3:a:squid-cache:squid:3.0.stable5
  • squid-cache.org Squid 3.0.stable4
    cpe:2.3:a:squid-cache:squid:3.0.stable4
  • squid-cache.org Squid 3.0.stable3
    cpe:2.3:a:squid-cache:squid:3.0.stable3
  • squid-cache.org Squid 3.0.stable25
    cpe:2.3:a:squid-cache:squid:3.0.stable25
  • squid-cache.org Squid 3.0.stable24
    cpe:2.3:a:squid-cache:squid:3.0.stable24
  • squid-cache.org Squid 3.0.stable23
    cpe:2.3:a:squid-cache:squid:3.0.stable23
  • squid-cache.org Squid 3.0.stable22
    cpe:2.3:a:squid-cache:squid:3.0.stable22
  • squid-cache.org Squid 3.0.stable21
    cpe:2.3:a:squid-cache:squid:3.0.stable21
  • squid-cache.org Squid 3.0.stable20
    cpe:2.3:a:squid-cache:squid:3.0.stable20
  • squid-cache.org Squid 3.0.stable2
    cpe:2.3:a:squid-cache:squid:3.0.stable2
  • squid-cache.org Squid 3.0.stable19
    cpe:2.3:a:squid-cache:squid:3.0.stable19
  • squid-cache.org Squid 3.0.stable18
    cpe:2.3:a:squid-cache:squid:3.0.stable18
  • squid-cache.org Squid 3.0.stable17
    cpe:2.3:a:squid-cache:squid:3.0.stable17
  • squid-cache.org Squid 3.0.stable16 release candidate 1
    cpe:2.3:a:squid-cache:squid:3.0.stable16:rc1
  • squid-cache.org Squid 3.0.stable16
    cpe:2.3:a:squid-cache:squid:3.0.stable16
  • squid-cache.org Squid 3.0.stable15
    cpe:2.3:a:squid-cache:squid:3.0.stable15
  • squid-cache.org Squid 3.0.stable14
    cpe:2.3:a:squid-cache:squid:3.0.stable14
  • squid-cache.org Squid 3.0.stable13
    cpe:2.3:a:squid-cache:squid:3.0.stable13
  • squid-cache.org Squid 3.0.stable12
    cpe:2.3:a:squid-cache:squid:3.0.stable12
  • squid-cache.org Squid 3.0.stable11 release candidate 1
    cpe:2.3:a:squid-cache:squid:3.0.stable11:rc1
  • squid-cache.org Squid 3.0.stable11
    cpe:2.3:a:squid-cache:squid:3.0.stable11
  • squid-cache.org Squid 3.0.stable10
    cpe:2.3:a:squid-cache:squid:3.0.stable10
  • squid-cache.org Squid 3.0.stable1
    cpe:2.3:a:squid-cache:squid:3.0.stable1
  • squid-cache.org Squid 3.0 release candidate 4
    cpe:2.3:a:squid-cache:squid:3.0:rc4
  • squid-cache.org Squid 3.0 PRE7
    cpe:2.3:a:squid-cache:squid:3.0:-:pre7
  • squid-cache.org Squid 3.0 PRE6
    cpe:2.3:a:squid-cache:squid:3.0:-:pre6
  • squid-cache.org Squid 3.0 PRE5
    cpe:2.3:a:squid-cache:squid:3.0:-:pre5
  • squid-cache.org Squid 3.0 PRE4
    cpe:2.3:a:squid-cache:squid:3.0:-:pre4
  • squid-cache.org Squid 3.0 PRE3
    cpe:2.3:a:squid-cache:squid:3.0:-:pre3
  • squid-cache.org Squid 3.0 PRE2
    cpe:2.3:a:squid-cache:squid:3.0:-:pre2
  • squid-cache.org Squid 3.0 PRE1
    cpe:2.3:a:squid-cache:squid:3.0:-:pre1
  • squid-cache.org Squid 3.0
    cpe:2.3:a:squid-cache:squid:3.0
CVSS
Base: 5.0 (as of 08-04-2016 - 12:42)
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 LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
redhat via4
advisories
bugzilla
id 1336940
title Disable squid systemd unit start/stop timeouts
oval
AND
  • OR
    • comment Red Hat Enterprise Linux 7 Client is installed
      oval oval:com.redhat.rhsa:tst:20140675001
    • comment Red Hat Enterprise Linux 7 Server is installed
      oval oval:com.redhat.rhsa:tst:20140675002
    • comment Red Hat Enterprise Linux 7 Workstation is installed
      oval oval:com.redhat.rhsa:tst:20140675003
    • comment Red Hat Enterprise Linux 7 ComputeNode is installed
      oval oval:com.redhat.rhsa:tst:20140675004
  • OR
    • AND
      • comment squid is earlier than 7:3.5.20-2.el7
        oval oval:com.redhat.rhsa:tst:20162600005
      • comment squid is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110545006
    • AND
      • comment squid-migration-script is earlier than 7:3.5.20-2.el7
        oval oval:com.redhat.rhsa:tst:20162600009
      • comment squid-migration-script is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20162600010
    • AND
      • comment squid-sysvinit is earlier than 7:3.5.20-2.el7
        oval oval:com.redhat.rhsa:tst:20162600007
      • comment squid-sysvinit is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20141147008
rhsa
id RHSA-2016:2600
released 2016-11-03
severity Moderate
title RHSA-2016:2600: squid security, bug fix, and enhancement update (Moderate)
rpms
  • squid-7:3.5.20-2.el7
  • squid-migration-script-7:3.5.20-2.el7
  • squid-sysvinit-7:3.5.20-2.el7
refmap via4
confirm
gentoo GLSA-201607-01
sectrack 1035458
suse
  • SUSE-SU-2016:1996
  • SUSE-SU-2016:2089
  • openSUSE-SU-2016:2081
Last major update 28-11-2016 - 15:14
Published 07-04-2016 - 14:59
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