CVE-2017-14495

Public on 2017-10-02
Modified on 2019-07-22
Description
A memory exhaustion flaw was found in dnsmasq in the EDNS0 code. An attacker could send crafted DNS packets which would trigger memory allocations which would never be freed, leading to unbounded memory consumption and eventually a crash. This issue only affected configurations using one of the options: add-mac, add-cpe-id, or add-subnet.
Severity
Important
CVSS v3 Base Score
7.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 dnsmasq 2019-07-18 18:22 ALAS2-2019-1251
Amazon Linux 1 dnsmasq 2017-10-02 17:05 ALAS-2017-907

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C
Amazon Linux CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
{"cc_re__cc_re__cc_by_4_0": ["ss.redhat.com/security/cve/CVE-2017-14495\" target=\"_blank\" rel=\"noopener noreferrer\">Red Hat: CVE-2017-14495</a>\n        </div>\n      </div>\n    </div>\n    <footer style=\"padding-left: 30px; padding-right: 30px;\"><p style=\"color: #687078\">\n      CVE description copyright &#169 2021\n      <a href=\"https://cve.mitre.org/about/termsofuse.html\" target=\"_blank\" rel=\"noopener noreferrer\">The MITRE Corporation</a>\n    </p>\n    <p style=\"color: #687078\">\n      CVE description copyright &#169 2021\n      <a href=\"https://creativecommons.org/licenses/by/4.0/\" target=\"_blank\" rel=\"noopener noreferrer\">Red Hat, Inc.</a>\n    </p>\n</footer>\n    <footer style=\"padding-left: 30px; padding-right: 30px;\"><p>\n        <a href=\"https://aws.amazon.com/privacy/\" target=\"_blank\" rel=\"noopener noreferrer\">Privacy</a> |\n        <a href=\"https://aws.amazon.com/terms/\" target=\"_blank\" rel=\"noopener noreferrer\">Site terms</a> |\n        <a href=\"#\" onclick=\"customize()\">Cookie preferences</a> |\n        <span style=\"color: #687078\">&#169 2021, Amazon Web Services, Inc. or its affiliates. All rights reserved.</sp"], "copyright__copyright__copyright": [" or add-subnet.\nSeverity\nImportant\nCVSS v3 Base Score\n7.5\nSee breakdown\n\nAffected Packages\n\nPlatform Package Release Date Advisory\nAmazon Linux 2 dnsmasq 2019-07-18 18:22 ALAS2-2019-1251\nAmazon Linux 1 dnsmasq 2017-10-02 17:05 ALAS-2017-907\n\nCVSS Scores\n\nScore Type Score Vector\nAmazon Linux CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C\nAmazon Linux CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\nNVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P\nNVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", " or add-subnet.\nSeverity\nImportant\nCVSS v3 Base Score\n7.5\nSee breakdown\n\nAffected Packages\n\nPlatform Package Release Date Advisory\nAmazon Linux 2 dnsmasq 2019-07-18 18:22 ALAS2-2019-1251\nAmazon Linux 1 dnsmasq 2017-10-02 17:05 ALAS-2017-907\n\nCVSS Scores\n\nScore Type Score Vector\nAmazon Linux CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C\nAmazon Linux CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\nNVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P\nNVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", " or add-subnet.\nSeverity\nImportant\nCVSS v3 Base Score\n7.5\nSee breakdown\n\nAffected Packages\n\nPlatform Package Release Date Advisory\nAmazon Linux 2 dnsmasq 2019-07-18 18:22 ALAS2-2019-1251\nAmazon Linux 1 dnsmasq 2017-10-02 17:05 ALAS-2017-907\n\nCVSS Scores\n\nScore Type Score Vector\nAmazon Linux CVSSv2 7.8 AV:N/AC:L/Au:N/C:N/I:N/A:C\nAmazon Linux CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\nNVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P\nNVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"]}