What is CVE-2017-12132?

CVE-2017-12132 is a medium-severity vulnerability in Gnu Glibc, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.9/10. Published 2017-08-01.

How severe is CVE-2017-12132?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Is CVE-2017-12132 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Resource exhaustion in Gnu Glibc

CVE-2017-12132

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.

EPSS: 0.019 (77.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Gnu Glibc
N/a — versions n/a

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

Public proof-of-concept exploits

References

cve@mitre.org (Technical Description, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (vdb-entry, x_refsource_BID)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (x_refsource_REDHAT, vendor-advisory)

Frequently asked questions

What is CVE-2017-12132?: CVE-2017-12132 is a medium-severity vulnerability in Gnu Glibc, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.9/10. Published 2017-08-01.
How severe is CVE-2017-12132?: Medium severity. CVSS v3 base score is 5.9 out of 10.
Is CVE-2017-12132 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.