The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is…
Priority MEDIUM 48CWE-415Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 7 fixed, 6 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.
Summary
The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double free in a certain error case, which could lead to a crash (or potentially have other impact).
Why it matters now
EPSS 0.03595 89th percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 7 fixed, 6 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 5 advisories
- RHSA-2018:2615 Released 2018-09-04 · Red Hat rating Moderatecollectd security update
- Red Hat Gluster 3.4 Web Administration Node Agent on RHEL-7 collectd-5.7.2-3.1.el7rhgs, collectd-ping-5.7.2-3.1.el7rhgs, libcollectdclient-5.7.2-3.1.el7rhgs
- Red Hat Gluster 3.4 Web Administration on RHEL-7 collectd-5.7.2-3.1.el7rhgs, collectd-ping-5.7.2-3.1.el7rhgs, libcollectdclient-5.7.2-3.1.el7rhgs
- RHSA-2018:1605 Released 2018-05-17 · Red Hat rating Moderatecollectd security update
- Red Hat OpenStack Platform 10.0 Operational Tools for RHEL 7 collectd-5.8.0-10.el7ost, collectd-apache-5.8.0-10.el7ost, collectd-ascent-5.8.0-10.el7ost +45
- RHSA-2018:0560 Released 2018-03-20 · Red Hat rating Moderatecollectd security, bug fix, and enhancement update
- Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts collectd-5.8.0-3.el7, collectd-apache-5.8.0-3.el7, collectd-ascent-5.8.0-3.el7 +41
- Red Hat Virtualization Manager 4.1 collectd-5.8.0-3.el7, collectd-apache-5.8.0-3.el7, collectd-ascent-5.8.0-3.el7 +40
Show 2 more Red Hat advisories
- RHSA-2018:0299 Released 2018-02-13 · Red Hat rating Moderatecollectd security update
- Red Hat OpenStack Platform 11.0 Operational Tools for RHEL 7 collectd-5.7.2-3.el7ost, collectd-apache-5.7.2-3.el7ost, collectd-ascent-5.7.2-3.el7ost +40
- RHSA-2018:0252 Released 2018-01-30 · Red Hat rating Moderatecollectd security update
- Red Hat OpenStack Platform 12.0 Operational Tools for RHEL 7 collectd-5.7.2-3.el7ost, collectd-apache-5.7.2-3.el7ost, collectd-ascent-5.7.2-3.el7ost +41
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Ceph Storage 2 | Affected | No fix yet |
| Red Hat Ceph Storage 3 | Affected | No fix yet |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 8 (Liberty) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat OpenStack Platform 9 (Mitaka) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat Storage Console 2 | Affected | No fix planned: Will not fix |
| Red Hat Gluster 3.4 Web Administration Node Agent on RHEL-7 | Fixed | RHSA-2018:2615 |
| Red Hat Gluster 3.4 Web Administration on RHEL-7 | Fixed | RHSA-2018:2615 |
| Red Hat OpenStack Platform 10.0 Operational Tools for RHEL 7 | Fixed | RHSA-2018:1605 |
| Red Hat OpenStack Platform 11.0 Operational Tools for RHEL 7 | Fixed | RHSA-2018:0299 |
| Red Hat OpenStack Platform 12.0 Operational Tools for RHEL 7 | Fixed | RHSA-2018:0252 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | Fixed | RHSA-2018:0560 |
| Red Hat Virtualization Manager 4.1 | Fixed | RHSA-2018:0560 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-16820
- 2026-10-03 Alias added: GHSA-fh5v-r835-mw7v
- 2026-10-23 EPSS moved to the 50th–90th percentile
References
More Collectd vulnerabilities
- TI-2016-05357 Heap-based buffer overflow in the parse_packet function in network.c in collectd before… CVSS 3.0CRITICAL 9.1
- TI-2017-05055 Incorrect interaction of the parse_packet() and parse_part_sign_sha256() functions in… CVSS 3.0HIGH 7.5
- TI-2010-04069 The cu_rrd_create_file function (src/utils_rrdcreate.c) in collectd 4.x before 4.9.4 and… CVSS 2.0MEDIUM 5.0
- TI-2017-13425 The Gentoo app-admin/collectd package before 5.7.2-r1 sets the ownership of PID file… CVSS 3.0MEDIUM 5.5
Sources
- CVE-2017-16820 · CVE Program
- CVE-2017-16820 · NVD
- FIRST EPSS
- GHSA-fh5v-r835-mw7v · GitHub Advisory Database · CC BY 4.0
- CVE-2017-16820 · Red Hat security data · CC BY 4.0
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