Vulnerability CVE-2017-9107: Information

Description

An issue was discovered in adns before 1.5.2. It overruns reading a buffer if a domain ends with backslash. If the query domain ended with \, and adns_qf_quoteok_query was specified, qdparselabel would read additional bytes from the buffer and try to treat them as the escape sequence. It would depart the input buffer and start processing many bytes of arbitrary heap data as if it were the query domain. Eventually it would run out of input or find some other kind of error, and declare the query domain invalid. But before then it might outrun available memory and crash. In principle this could be a denial of service attack.

Severity: HIGH (7.5) Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published: June 18, 2020
Modified: Nov. 7, 2023
Error type identifier: CWE-119

Fixed packages

Package name
Branch
Fixed in version
Version from repository
Errata ID
Task #
State
adnssisyphus1.5.2-alt11.6.0-alt2ALT-PU-2020-2177-1253454Fixed
adnsp101.5.2-alt11.6.0-alt1ALT-PU-2020-2177-1253454Fixed
adnsp91.5.2-alt11.5.2-alt1ALT-PU-2020-2191-1253455Fixed
adnsp81.5.2-alt11.5.2-alt1ALT-PU-2020-2213-1253457Fixed
adnsc10f11.5.2-alt11.6.0-alt1ALT-PU-2020-2177-1253454Fixed
adnsc9f21.5.2-alt11.5.2-alt1ALT-PU-2020-2191-1253455Fixed

References to Advisories, Solutions, and Tools

    1. Configuration 1

      cpe:2.3:a:gnu:adns:*:*:*:*:*:*:*:*
      End excliding
      1.5.2

      Configuration 2

      cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*

      cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*