RHSA-2014:0016
Vulnerability from csaf_redhat
Published
2014-01-08 18:16
Modified
2024-11-22 07:21
Summary
Red Hat Security Advisory: gnupg security update

Notes

Topic
An updated gnupg package that fixes one security issue is now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having moderate 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
The GNU Privacy Guard (GnuPG or GPG) is a tool for encrypting data and creating digital signatures, compliant with the proposed OpenPGP Internet standard and the S/MIME standard. It was found that GnuPG was vulnerable to side-channel attacks via acoustic cryptanalysis. An attacker in close range to a target system that is decrypting ciphertexts could possibly use this flaw to recover the RSA secret key from that system. (CVE-2013-4576) Red Hat would like to thank Werner Koch of GnuPG upstream for reporting this issue. Upstream acknowledges Genkin, Shamir, and Tromer as the original reporters. All gnupg users are advised to upgrade to this updated package, which contains a backported patch to correct this issue.
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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        },
        "product_reference": "gnupg-debuginfo-0:1.4.5-18.el5_10.1.s390x",
        "relates_to_product_reference": "5Server-5.10.Z"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "gnupg-debuginfo-0:1.4.5-18.el5_10.1.x86_64 as a component of Red Hat Enterprise Linux (v. 5 server)",
          "product_id": "5Server-5.10.Z:gnupg-debuginfo-0:1.4.5-18.el5_10.1.x86_64"
        },
        "product_reference": "gnupg-debuginfo-0:1.4.5-18.el5_10.1.x86_64",
        "relates_to_product_reference": "5Server-5.10.Z"
      }
    ]
  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Werner Koch"
          ],
          "organization": "GnuPG upstream"
        }
      ],
      "cve": "CVE-2013-4576",
      "discovery_date": "2013-12-11T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1043327"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "GnuPG 1.x before 1.4.16 generates RSA keys using sequences of introductions with certain patterns that introduce a side channel, which allows physically proximate attackers to extract RSA keys via a chosen-ciphertext attack and acoustic cryptanalysis during decryption. NOTE: applications are not typically expected to protect themselves from acoustic side-channel attacks, since this is arguably the responsibility of the physical device. Accordingly, issues of this type would not normally receive a CVE identifier. However, for this issue, the developer has specified a security policy in which GnuPG should offer side-channel resistance, and developer-specified security-policy violations are within the scope of CVE.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "gnupg: RSA secret key recovery via acoustic cryptanalysis",
          "title": "Vulnerability summary"
        },
        {
          "category": "general",
          "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.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2013-4576"
        },
        {
          "category": "external",
          "summary": "RHBZ#1043327",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1043327"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2013-4576",
          "url": "https://www.cve.org/CVERecord?id=CVE-2013-4576"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2013-4576",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4576"
        },
        {
          "category": "external",
          "summary": "http://lists.gnupg.org/pipermail/gnupg-announce/2013q4/000337.html",
          "url": "http://lists.gnupg.org/pipermail/gnupg-announce/2013q4/000337.html"
        },
        {
          "category": "external",
          "summary": "http://www.cs.tau.ac.il/~tromer/acoustic/",
          "url": "http://www.cs.tau.ac.il/~tromer/acoustic/"
        }
      ],
      "release_date": "2013-12-18T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2014-01-08T18:16:05+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 use the\nRed Hat Network to apply this update are available at\nhttps://access.redhat.com/site/articles/11258",
          "product_ids": [
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          ],
          "restart_required": {
            "category": "none"
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          "url": "https://access.redhat.com/errata/RHSA-2014:0016"
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      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "ADJACENT_NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.9,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:A/AC:M/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "gnupg: RSA secret key recovery via acoustic cryptanalysis"
    }
  ]
}


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