CVE-2017-3137: A response packet can cause a resolver to terminate when processing an answer containing a CNAME or DNAME
Vulnerability summary
CVE-2017-3137 is a high (CVSS 7.5) Reachable Assertion vulnerability in debian debian_linux. EPSS estimates a 8.90% chance of exploitation in the next 30 days, higher than 95.2% of scored vulnerabilities.
Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 9% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 11 · Related 6Timeline
- 16-01-2019PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
Mistaken assumptions about the ordering of records in the answer section of a response containing CNAME or DNAME resource records could lead to a situation in which named would exit with an assertion failure when processing a response in which records occurred in an unusual order. Affects BIND 9.9.9-P6, 9.9.10b1->9.9.10rc1, 9.10.4-P6, 9.10.5b1->9.10.5rc1, 9.11.0-P3, 9.11.1b1->9.11.1rc1, and 9.9.9-S8.
CVSS metrics
8 scores · 7 sources · 2 versions- NVDNIST7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
8.90%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
Decrease -0.07 pp
From 8.97% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Suse9 products
- bind&distro=SUSE Linux Enterprise Point of Sale 11 SP3< 9.9.6P1-0.47.1
- bind&distro=SUSE Linux Enterprise Server 11 SP3-LTSS< 9.9.6P1-0.47.1
- bind&distro=SUSE Linux Enterprise Server 11 SP3-TERADATA< 9.9.6P1-0.47.1
- bind&distro=SUSE Linux Enterprise Server 11 SP4< 9.9.6P1-0.47.1
- bind&distro=SUSE Linux Enterprise Server for SAP Applications 11 SP4< 9.9.6P1-0.47.1
Redhat6 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_server_aus6.2 | 6.4 | 6.5 | 6.6 | 7.2 | 7.3 | 7.4 | 7.6
- enterprise_linux_server_eus6.7 | 7.2 | 7.3 | 7.4 | 7.5 | 7.6
- enterprise_linux_server_tus6.5 | 6.6 | 7.2 | 7.3 | 7.6
Netapp3 products
Debian2 products
- bind9< 1:9.10.3.dfsg.P4-12.3
- debian_linuxEOL8.0
Isc2 products
Alpine1 product
- bind< 9.11.0_p5-r0 | < 9.10.4_p8 | < 9.10.4_p8-r0
Chainguard1 product
- bindAll versions (No fix recorded)
Ubuntu1 product
- bind9< 1:9.9.5.dfsg-3ubuntu0.14 | < 1:9.10.3.dfsg.P4-8ubuntu1.6
Wolfi1 product
- bindAll versions (No fix recorded)
9 vendors · 26 products
References
20 links- access.redhat.com/errata/RHSA-2017:1095Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
- access.redhat.com/errata/RHSA-2017:1582Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
- access.redhat.com/errata/RHSA-2017:1583Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
- access.redhat.com/errata/RHSA-2017:1105Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory