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SUSE-SU-2018:3436-2

Vulnerability from csaf_suse - Published: 2019-04-27 14:50 - Updated: 2019-04-27 14:50
Summary
Security update for clamav
Severity
Moderate
Notes
Title of the patch: Security update for clamav
Description of the patch: This update for clamav fixes the following issues: clamav was updated to version 0.100.2: - CVE-2018-15378: Vulnerability in ClamAV's MEW unpacking feature that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. (bsc#1110723) - CVE-2018-14680, CVE-2018-14681, CVE-2018-14682: more fixes for embedded libmspack. (bsc#1103040) - Make freshclam more robust against lagging signature mirrors. - On-Access 'Extra Scanning', an opt-in minor feature of OnAccess scanning on Linux systems, has been disabled due to a known issue with resource cleanup OnAccessExtraScanning will be re-enabled in a future release when the issue is resolved. In the mean-time, users who enabled the feature in clamd.conf will see a warning informing them that the feature is not active. For details, see: https://bugzilla.clamav.net/show_bug.cgi?id=12048 - Restore exit code compatibility of freshclam with versions before 0.100.0 when the virus database is already up to date (bsc#1104457).
Patchnames: SUSE-SLE-SAP-12-SP1-2019-1071
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2018-14680
4.4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 12 SP1:clamav-0.100.2-33.18.1.x86_64 —
Vendor Fix
Threats
Impact low
CVE-2018-14681
4.4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Affected products
Recommended 1 product, the same list as for CVE-2018-14680
Threats
Impact low
CVE-2018-14682
4.4 (Medium)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
Affected products
Recommended 1 product, the same list as for CVE-2018-14680
Threats
Impact low
CVE-2018-15378
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Recommended 1 product, the same list as for CVE-2018-14680
Threats
Impact moderate
References
To clipboard 

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        "title": "Title of the patch"
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        "text": "This update for clamav fixes the following issues:\n\nclamav was updated to version 0.100.2:\n\n- CVE-2018-15378: Vulnerability in ClamAV\u0027s MEW unpacking feature that\n  could allow an unauthenticated, remote attacker to cause a denial of\n  service (DoS) condition on an affected device. (bsc#1110723)\n- CVE-2018-14680, CVE-2018-14681, CVE-2018-14682: more fixes for embedded\n  libmspack. (bsc#1103040)\n\n- Make freshclam more robust against lagging signature mirrors.\n- On-Access \u0027Extra Scanning\u0027, an opt-in minor feature of\n  OnAccess scanning on Linux systems, has been disabled due to a\n  known issue with resource cleanup OnAccessExtraScanning will\n  be re-enabled in a future release when the issue is\n  resolved. In the mean-time, users who enabled the feature in\n  clamd.conf will see a warning informing them that the feature\n  is not active. For details, see:\n  https://bugzilla.clamav.net/show_bug.cgi?id=12048\n\n- Restore exit code compatibility of freshclam with versions before\n  0.100.0 when the virus database is already up to date\n  (bsc#1104457).\n",
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  "vulnerabilities": [
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      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in mspack/chmd.c in libmspack before 0.7alpha. It does not reject blank CHM filenames.",
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        {
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          "product_ids": [
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          "text": "https://www.suse.com/security/cve/CVE-2018-14681"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in kwajd_read_headers in mspack/kwajd.c in libmspack before 0.7alpha. Bad KWAJ file header extensions could cause a one or two byte overwrite.",
          "title": "CVE description"
        }
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          "title": "CVE description"
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          ]
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            "version": "3.0"
          },
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            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:clamav-0.100.2-33.18.1.x86_64"
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        }
      ],
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        {
          "category": "general",
          "text": "A vulnerability in ClamAV versions prior to 0.100.2 could allow an attacker to cause a denial of service (DoS) condition. The vulnerability is due to an error related to the MEW unpacker within the \"unmew11()\" function (libclamav/mew.c), which can be exploited to trigger an invalid read memory access via a specially crafted EXE file.",
          "title": "CVE description"
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        }
      ],
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        {
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:clamav-0.100.2-33.18.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:clamav-0.100.2-33.18.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
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          "date": "2019-04-27T14:50:55Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-15378"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.