CVE-2017-12132
low-risk
Published 2017-08-01
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.
Do I need to act?
-
0.29% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Affected Vendors
References (8)
Technical Description
https://arxiv.org/pdf/1205.4011.pdf
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=21361
Technical Description
https://arxiv.org/pdf/1205.4011.pdf
Issue Tracking
https://sourceware.org/bugzilla/show_bug.cgi?id=21361
24
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal