Use After Free in Isc Bind

CVE-2017-3145

BIND was improperly sequencing cleanup operations on upstream recursion fetch contexts, leading in some cases to a use-after-free error that can trigger an assertion failure and crash in named. Affects BIND 9.0.0 to 9.8.x, 9.9.0 to 9.9.11, 9.10.0 to 9.10.6, 9.11.0 to 9.11.2, 9.9.3-S1 to 9.9.11-S1, 9.10.5-S1 to 9.10.6-S1, 9.12.0a1 to 9.12.0rc1.

Vulnerability class: Use-After-Free

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.277 (98.1th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2017-3145: held from 0.279 to 0.277.

EPSS over last 30 days · oldest: 0.279 · newest: 0.277 · change: -0.002

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-3145?
CVE-2017-3145 is a high-severity vulnerability in Isc Bind, classified under Use After Free. CVSS score: 7.5/10. Published 2019-01-16.
How severe is CVE-2017-3145?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2017-3145 known to be exploited?
23 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.