---
title: "CVE-2019-15162\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-15162?format=md
keywords: index, follow
---

# CVE-2019-15162

Publication date 30 September 2019

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2019-15162?format=md#impact-score)

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## Description

rpcapd/daemon.c in libpcap before 1.9.1 on non-Windows platforms provides
details about why authentication failed, which might make it easier for
attackers to enumerate valid usernames.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2019-15162?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libpcap | 19.10 eoan | Not affected |
| 19.04 disco | Not affected |
| 18.04 LTS bionic | Not affected |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not affected |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2019-15162?format=md#patch-details)

## Notes

---

### [sbeattie](https://launchpad.net/~sbeattie)

issue is in the libpcap daemon, introduced
in 1.9.0 and is not included in debian/ubuntu packaging

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| libpcap | * Upstream:   [484d60c](https://github.com/the-tcpdump-group/libpcap/commit/484d60cbf7ca4ec758c3cbb8a82d68b244a78d58) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | Low |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-15162)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-15162)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-15162)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-15162)

### Other references

* <https://www.tcpdump.org/libpcap-changes.txt>
* <http://www.tcpdump.org/public-cve-list.txt>
* <https://www.cve.org/CVERecord?id=CVE-2019-15162>