Description
snmplib/mib.c in net-snmp 5.7.0 and earlier, when the -OQ option is used, allows remote attackers to cause a denial of service (snmptrapd crash) via a crafted SNMP trap message, which triggers a conversion to the variable type designated in the MIB file, as demonstrated by a NULL type in an ifMtu trap message.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | net-snmp | 5.7.2.1~dfsg-7 | — |
| Debian 13 | net-snmp | 5.7.2.1~dfsg-7 | — |
| Debian 12 | net-snmp | 5.7.2.1~dfsg-7 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | net-snmp | 5.7.2~dfsg-8.1ubuntu3.1 | USN-2711-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | net-snmp +8 | 1:5.7.2-24.el7 | RHSA-2015:2345 |
| RHEL 6 | net-snmp +5 | 1:5.5-54.el6 | RHSA-2015:1385 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | net-snmp | 5.7.3-8.4 | openSUSE-SU-2024:10204-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | net-snmp +8 | 1:5.7.2-24.el7 | ELSA-2015-2345 |
Advisories 7
- RHSA-2015:2345 Red Hat Security Advisory: net-snmp security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2015:1385 Red Hat Security Advisory: net-snmp security and bug fix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2711-1 net-snmp vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10204-1 libsnmp30-32bit-5.7.3-8.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1695 Net-SNMP: Schwachstelle ermöglicht Denial of Service BSI CERT-Bund (WID) · Jul 31, 2025
- WID-SEC-2024-1591 Juniper JUNOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2024
- ELSA-2015-2345 Moderate: net-snmp security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 23, 2015
References
- APPLE-SA-2015-10-21-4 vendor-advisory
- https://support.apple.com/HT205375
- http://sourceforge.net/p/net-snmp/code/ci/7f4a7b891332899cea26e95be0337aae01648742/
- http://sourceforge.net/p/net-snmp/official-patches/48/
- 69477 vdb-entry
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- USN-2711-1 vendor-advisory
- openSUSE-SU-2014:1108 vendor-advisory
- GLSA-201507-17 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1125155
- RHSA-2015:1385 vendor-advisory