# CVE-2020-15861: libsnmp30: Net-SNMP through 5.7.3 allows Escalation of Privileges because of UNIX symbolic link (symlink) following.

CVE-2020-15861 is fixed in 9 products on 1 platform, first by libsnmp-base 5.7.3+dfsg-1.8ubuntu3.5, released August 5, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-15861
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0046
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 5, 2020

## Description

Net-SNMP through 5.7.3 allows Escalation of Privileges because of UNIX symbolic link (symlink) following.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libsnmp-base Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [libsnmp-base 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsnmp-base-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | libsnmp-base Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [libsnmp-base 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libsnmp-base-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | libsnmp-perl Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [libsnmp-perl 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsnmp-perl-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | libsnmp-perl Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [libsnmp-perl 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libsnmp-perl-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | libsnmp30 Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [libsnmp30 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsnmp30-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | libsnmp35 Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [libsnmp35 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libsnmp35-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | python-netsnmp Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [python-netsnmp 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-netsnmp-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | snmp Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [snmp 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-snmp-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | snmp Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [snmp 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-snmp-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | snmpd Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [snmpd 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-snmpd-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | snmpd Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [snmpd 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-snmpd-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | snmptrapd Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [snmptrapd 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-snmptrapd-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | snmptrapd Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [snmptrapd 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-snmptrapd-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |
| Linux | tkmib Ubuntu 18.04.6 LTS (bionic) | 5.7.3+dfsg-1.8ubuntu3.5 | [tkmib 5.7.3+dfsg-1.8ubuntu3.5](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-tkmib-5.7.3-dfsg-1.8ubuntu3.5.md) | Aug 5, 2020 |
| Linux | tkmib Ubuntu 20.04 LTS (focal) | 5.8+dfsg-2ubuntu2.3 | [tkmib 5.8+dfsg-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-tkmib-5.8-dfsg-2ubuntu2.3.md) | Aug 5, 2020 |

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