CVEvulnerability
CVE-2017-12132
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2017-08-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.9 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-770
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.
Affected configurations
• gnu glibc (<= 2.25)
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- http://www.securityfocus.com/bid/100598 www.securityfocus.com
- https://access.redhat.com/errata/RHSA-2018:0805 access.redhat.com
- https://arxiv.org/pdf/1205.4011.pdf Technical Description, Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=21361 Issue Tracking, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/100598 www.securityfocus.com
- https://access.redhat.com/errata/RHSA-2018:0805 access.redhat.com
- https://arxiv.org/pdf/1205.4011.pdf Technical Description, Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=21361 Issue Tracking, Patch, Third Party Advisory