ID CVE-2009-2621
Summary Squid 3.0 through 3.0.STABLE16 and 3.1 through 3.1.0.11 does not properly enforce "buffer limits and related bound checks," which allows remote attackers to cause a denial of service via (1) an incomplete request or (2) a request with a large header size, related to (a) HttpMsg.cc and (b) client_side.cc.
References
Vulnerable Configurations
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable1
    cpe:2.3:a:squid-cache:squid:3.0:-:stable1
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable10
    cpe:2.3:a:squid-cache:squid:3.0:-:stable10
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable11
    cpe:2.3:a:squid-cache:squid:3.0:-:stable11
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable12
    cpe:2.3:a:squid-cache:squid:3.0:-:stable12
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable2
    cpe:2.3:a:squid-cache:squid:3.0:-:stable2
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable3
    cpe:2.3:a:squid-cache:squid:3.0:-:stable3
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable4
    cpe:2.3:a:squid-cache:squid:3.0:-:stable4
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable5
    cpe:2.3:a:squid-cache:squid:3.0:-:stable5
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable6
    cpe:2.3:a:squid-cache:squid:3.0:-:stable6
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable7
    cpe:2.3:a:squid-cache:squid:3.0:-:stable7
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable8
    cpe:2.3:a:squid-cache:squid:3.0:-:stable8
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable9
    cpe:2.3:a:squid-cache:squid:3.0:-:stable9
  • squid-cache.org Squid 3.0 PRE1
    cpe:2.3:a:squid-cache:squid:3.0:-:pre1
  • squid-cache.org Squid 3.0 PRE2
    cpe:2.3:a:squid-cache:squid:3.0:-:pre2
  • squid-cache.org Squid 3.0 PRE3
    cpe:2.3:a:squid-cache:squid:3.0:-:pre3
  • squid-cache.org Squid 3.1
    cpe:2.3:a:squid-cache:squid:3.1
  • squid-cache.org Squid 3.1.0.1
    cpe:2.3:a:squid-cache:squid:3.1.0.1
  • squid-cache.org Squid 3.1.0.2
    cpe:2.3:a:squid-cache:squid:3.1.0.2
  • squid-cache.org Squid 3.1.0.3
    cpe:2.3:a:squid-cache:squid:3.1.0.3
  • squid-cache.org Squid 3.1.0.4
    cpe:2.3:a:squid-cache:squid:3.1.0.4
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable13
    cpe:2.3:a:squid-cache:squid:3.0:-:stable13
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable14
    cpe:2.3:a:squid-cache:squid:3.0:-:stable14
  • cpe:2.3:a:squid-cache:squid:3.0:-:stable15
    cpe:2.3:a:squid-cache:squid:3.0:-:stable15
  • 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
  • cpe:2.3:a:squid-cache:squid:3.0:rc1:stable11
    cpe:2.3:a:squid-cache:squid:3.0:rc1:stable11
  • squid-cache.org Squid 3.0 release candidate 4
    cpe:2.3:a:squid-cache:squid:3.0:rc4
CVSS
Base: 5.0 (as of 28-07-2009 - 13:27)
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
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_0_SQUID-100316.NASL
    description The following vulnerabilities have been fixed in squid : - CVE-2009-2855: DoS via special crafted auth header - CVE-2010-0308: DoS via invalid DoS header - CVE-2009-2622: DoS in squid3 via broken HTTP handling - CVE-2009-2621: DoS in squid3 via not enforced 'buffer limits and related bound checks'
    last seen 2019-02-21
    modified 2016-12-21
    plugin id 45126
    published 2010-03-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=45126
    title openSUSE Security Update : squid (squid-2144)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2009-161.NASL
    description Multiple vulnerabilities has been found and corrected in squid : Due to incorrect buffer limits and related bound checks Squid is vulnerable to a denial of service attack when processing specially crafted requests or responses (CVE-2009-2621). Due to incorrect data validation Squid is vulnerable to a denial of service attack when processing specially crafted responses (CVE-2009-2622). This update provides fixes for these vulnerabilities. Update : Additional upstream security patches were applied : Debug warnings fills up the logs. Upstream Bug 2728: regression: assertion failed: http.cc:705: !eof
    last seen 2019-02-21
    modified 2018-07-19
    plugin id 40399
    published 2009-07-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40399
    title Mandriva Linux Security Advisory : squid (MDVSA-2009:161-1)
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_E1156E907AD611DEB26A0048543D60CE.NASL
    description Squid security advisory 2009:2 reports : Due to incorrect buffer limits and related bound checks Squid is vulnerable to a denial of service attack when processing specially crafted requests or responses. Due to incorrect data validation Squid is vulnerable to a denial of service attack when processing specially crafted responses. These problems allow any trusted client or external server to perform a denial of service attack on the Squid service. Squid-2.x releases are not affected.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 40396
    published 2009-07-28
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40396
    title FreeBSD : squid -- several remote denial of service vulnerabilities (e1156e90-7ad6-11de-b26a-0048543d60ce)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2009-8327.NASL
    description Fixes several denial of service issues which could allow an attacker to stop the Squid service. CVE-2009-2621, CVE-2009-2622 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 2016-12-08
    plugin id 40628
    published 2009-08-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40628
    title Fedora 10 : squid-3.0.STABLE18-1.fc10 (2009-8327)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_1_SQUID-100318.NASL
    description The following vulnerabilities have been fixed in squid : - CVE-2009-2855: DoS via special crafted auth header - CVE-2010-0308: DoS via invalid DoS header - CVE-2009-2622: DoS in squid3 via broken HTTP handling - CVE-2009-2621: DoS in squid3 via not enforced 'buffer limits and related bound checks'
    last seen 2019-02-21
    modified 2016-12-21
    plugin id 45127
    published 2010-03-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=45127
    title openSUSE Security Update : squid (squid-2144)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2009-8324.NASL
    description Fixes several denial of service issues which could allow an attacker to stop the Squid service. CVE-2009-2621, CVE-2009-2622 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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 2016-12-08
    plugin id 40627
    published 2009-08-20
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40627
    title Fedora 11 : squid-3.0.STABLE18-1.fc11 (2009-8324)
  • NASL family Firewalls
    NASL id SQUID_3_0_16.NASL
    description According to its banner, the version of the Squid proxy caching server installed on the remote host is older than 3.0.STABLE17 or 3.1.0.12. Such versions reportedly use incorrect bounds checking when processing some requests or responses. Squid-2.x releases are not vulnerable.
    last seen 2019-02-21
    modified 2018-07-30
    plugin id 40420
    published 2009-07-29
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=40420
    title Squid 3.0.STABLE16 / 3.10.11
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_SQUID-100316.NASL
    description The following vulnerabilities have been fixed in squid : - DoS via special crafted auth header. (CVE-2009-2855) - DoS via invalid DoS header. (CVE-2010-0308)
    last seen 2018-09-01
    modified 2016-12-21
    plugin id 45131
    published 2010-03-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=45131
    title SuSE 11 Security Update : squid (SAT Patch Number 2143)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201110-24.NASL
    description The remote host is affected by the vulnerability described in GLSA-201110-24 (Squid: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Squid. Please review the CVE identifiers referenced below for details. Impact : Remote unauthenticated attackers may be able to execute arbitrary code with the privileges of the Squid process or cause a Denial of Service. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-07-11
    plugin id 56658
    published 2011-10-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=56658
    title GLSA-201110-24 : Squid: Multiple vulnerabilities
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_2_SQUID-100318.NASL
    description The following vulnerabilities have been fixed in squid : - CVE-2009-2855: DoS via special crafted auth header - CVE-2010-0308: DoS via invalid DoS header - CVE-2009-2622: DoS in squid3 via broken HTTP handling - CVE-2009-2621: DoS in squid3 via not enforced 'buffer limits and related bound checks'
    last seen 2019-02-21
    modified 2016-12-21
    plugin id 45129
    published 2010-03-23
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=45129
    title openSUSE Security Update : squid (squid-2144)
refmap via4
bid 35812
confirm
mandriva
  • MDVSA-2009:161
  • MDVSA-2009:178
sectrack 1022607
secunia 36007
vupen ADV-2009-2013
statements via4
contributor Tomas Hoger
lastmodified 2009-08-06
organization Red Hat
statement Not vulnerable. This issue did not affect the versions of squid as shipped with Red Hat Enterprise Linux 3, 4, or 5.
Last major update 12-08-2009 - 01:30
Published 28-07-2009 - 13:30
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