CVE-2017-16820

critical
Published 2017-11-14 · Modified 2026-05-13
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2
10.0
VIR risk
9.8

Description

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).

Predictions

Exploit likelihood
97%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-16820

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — https://github.com/collectd/collectd/commit/d16c24542b2f96a194d43a73c2e5778822b9cb47

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed5.8.0-1
debian debianbullseyefixed5.8.0-1
debian debianforkyfixed5.8.0-1
debian debiansidfixed5.8.0-1
debian debiantrixiefixed5.8.0-1

Application impact

VendorProductVersionsFixed
collectdcollectd{"endExcluding":"5.6.3"}5.6.3

References

CWEs

CWE-415

Verify integrity in audit chain (admin only). AS-IS.