RHSA-2011:0545

Vulnerability from csaf_redhat - Published: 2011-05-19 11:15 - Updated: 2025-11-21 17:38
Summary
Red Hat Security Advisory: squid security and bug fix update

Notes

Topic
An updated squid package that fixes one security issue and two bugs is now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having low security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.
Details
Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. It was found that string comparison functions in Squid did not properly handle the comparisons of NULL and empty strings. A remote, trusted web client could use this flaw to cause the squid daemon to crash via a specially-crafted request. (CVE-2010-3072) This update also fixes the following bugs: * A small memory leak in Squid caused multiple "ctx: enter level" messages to be logged to "/var/log/squid/cache.log". This update resolves the memory leak. (BZ#666533) * This erratum upgrades Squid to upstream version 3.1.10. This upgraded version supports the Google Instant service and introduces various code improvements. (BZ#639365) Users of squid should upgrade to this updated package, which resolves these issues. After installing this update, the squid service will be restarted automatically.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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          "text": "The string-comparison functions in String.cci in Squid 3.x before 3.1.8 and 3.2.x before 3.2.0.2 allow remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted request.",
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          "text": "Squid: Denial of service due internal error in string handling (SQUID-2010:3)",
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          "text": "This issue did not affect the version of Squid as shipped with Red Hat Enterprise Linux 3, 4, or 5.  It was corrected in Red Hat Enterprise Linux 6 via RHSA-2011:0545.",
          "title": "Statement"
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          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2010-3072",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2010-3072"
        }
      ],
      "release_date": "2010-09-03T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2011-05-19T11:15:00+00:00",
          "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. Details on how to\nuse the Red Hat Network to apply this update are available at\nhttps://access.redhat.com/kb/docs/DOC-11259",
          "product_ids": [
            "6Server:squid-7:3.1.10-1.el6.i686",
            "6Server:squid-7:3.1.10-1.el6.ppc64",
            "6Server:squid-7:3.1.10-1.el6.s390x",
            "6Server:squid-7:3.1.10-1.el6.src",
            "6Server:squid-7:3.1.10-1.el6.x86_64",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.i686",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.ppc64",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.s390x",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.x86_64",
            "6Workstation:squid-7:3.1.10-1.el6.i686",
            "6Workstation:squid-7:3.1.10-1.el6.ppc64",
            "6Workstation:squid-7:3.1.10-1.el6.s390x",
            "6Workstation:squid-7:3.1.10-1.el6.src",
            "6Workstation:squid-7:3.1.10-1.el6.x86_64",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.i686",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.ppc64",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.s390x",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2011:0545"
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 3.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "products": [
            "6Server:squid-7:3.1.10-1.el6.i686",
            "6Server:squid-7:3.1.10-1.el6.ppc64",
            "6Server:squid-7:3.1.10-1.el6.s390x",
            "6Server:squid-7:3.1.10-1.el6.src",
            "6Server:squid-7:3.1.10-1.el6.x86_64",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.i686",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.ppc64",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.s390x",
            "6Server:squid-debuginfo-7:3.1.10-1.el6.x86_64",
            "6Workstation:squid-7:3.1.10-1.el6.i686",
            "6Workstation:squid-7:3.1.10-1.el6.ppc64",
            "6Workstation:squid-7:3.1.10-1.el6.s390x",
            "6Workstation:squid-7:3.1.10-1.el6.src",
            "6Workstation:squid-7:3.1.10-1.el6.x86_64",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.i686",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.ppc64",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.s390x",
            "6Workstation:squid-debuginfo-7:3.1.10-1.el6.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "Squid: Denial of service due internal error in string handling (SQUID-2010:3)"
    }
  ]
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.