VULNERABILITY INTELLIGENCE

CVE-2017-12132

CVSS score5.9 MEDIUM
EPSS probability1.96%
CISA KEVNot currently listed
Published2017-08-01
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

The DNS stub resolver in the GNU C Library (aka glibc or libc6) before version 2.26, when EDNS support is enabled, will solicit large UDP responses from name servers, potentially simplifying off-path DNS spoofing attacks due to IP fragmentation.

Weakness classification

  • CWE-770: Allocation of Resources Without Limits or Throttling

Primary references