# CVE-2019-8936: ntp: NTP through 4.2.8p12 has a NULL Pointer Dereference.

CVE-2019-8936 is fixed in 3 products on 1 platform, first by ntp 1:4.2.8p10+dfsg-5ubuntu7.3, released May 15, 2019. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2019-8936
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0573
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 15, 2019

## Description

NTP through 4.2.8p12 has a NULL Pointer Dereference.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ntp Ubuntu 18.04.6 LTS (bionic) | 1:4.2.8p10+dfsg-5ubuntu7.3 | [ntp 1:4.2.8p10+dfsg-5ubuntu7.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ntp-1-4.2.8p10-dfsg-5ubuntu7.3.md) | May 15, 2019 |
| Linux | ntp Ubuntu 20.04 LTS (focal) | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | [ntp 1:4.2.8p12+dfsg-3ubuntu4.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ntp-1-4.2.8p12-dfsg-3ubuntu4.20.04.1.md) | May 15, 2019 |
| Linux | ntp Ubuntu 22.04.1 LTS (jammy) | 1:4.2.8p12+dfsg-3ubuntu6 | [ntp 1:4.2.8p12+dfsg-3ubuntu6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ntp-1-4.2.8p12-dfsg-3ubuntu6.md) | May 15, 2019 |
| Linux | ntpdate Ubuntu 18.04.6 LTS (bionic) | 1:4.2.8p10+dfsg-5ubuntu7.3 | [ntpdate 1:4.2.8p10+dfsg-5ubuntu7.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ntpdate-1-4.2.8p10-dfsg-5ubuntu7.3.md) | May 15, 2019 |
| Linux | ntpdate Ubuntu 20.04 LTS (focal) | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | [ntpdate 1:4.2.8p12+dfsg-3ubuntu4.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-ntpdate-1-4.2.8p12-dfsg-3ubuntu4.20.04.1.md) | May 15, 2019 |
| Linux | ntpdate Ubuntu 22.04.1 LTS (jammy) | 1:4.2.8p12+dfsg-3ubuntu6 | [ntpdate 1:4.2.8p12+dfsg-3ubuntu6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-ntpdate-1-4.2.8p12-dfsg-3ubuntu6.md) | May 15, 2019 |
| Linux | sntp Ubuntu 18.04.6 LTS (bionic) | 1:4.2.8p10+dfsg-5ubuntu7.3 | [sntp 1:4.2.8p10+dfsg-5ubuntu7.3](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-sntp-1-4.2.8p10-dfsg-5ubuntu7.3.md) | May 15, 2019 |
| Linux | sntp Ubuntu 20.04 LTS (focal) | 1:4.2.8p12+dfsg-3ubuntu4.20.04.1 | [sntp 1:4.2.8p12+dfsg-3ubuntu4.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-sntp-1-4.2.8p12-dfsg-3ubuntu4.20.04.1.md) | May 15, 2019 |
| Linux | sntp Ubuntu 22.04.1 LTS (jammy) | 1:4.2.8p12+dfsg-3ubuntu6 | [sntp 1:4.2.8p12+dfsg-3ubuntu6](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-sntp-1-4.2.8p12-dfsg-3ubuntu6.md) | May 15, 2019 |

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