# CVE-2018-19115: keepalived: keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly...

CVE-2018-19115 is fixed in keepalived on 1 platform by keepalived 1:1.3.9-1ubuntu0.18.04.2 (version 1:1.3.9-1ubuntu0.18.04.2), released November 7, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-19115
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0375
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Nov 7, 2018

## Description

keepalived before 2.0.7 has a heap-based buffer overflow when parsing HTTP status codes resulting in DoS or possibly unspecified other impact, because extract_status_code in lib/html.c has no validation of the status code and instead writes an unlimited amount of data to the heap.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | keepalived Ubuntu 18.04.6 LTS (bionic) | 1:1.3.9-1ubuntu0.18.04.2 | [keepalived 1:1.3.9-1ubuntu0.18.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-keepalived-1-1.3.9-1ubuntu0.18.04.2.md) | Nov 7, 2018 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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