# qemu-system-data 1:4.2-1ubuntu1: qemu-system-data 1:4.2-1ubuntu1 for Ubuntu 25.04 (plucky)

qemu-system-data 1:4.2-1ubuntu1, released January 16, 2026, fixes 2 CVEs in qemu-system-data. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-plucky-qemu-system-data-1-4.2-1ubuntu1
- Platform: Linux
- Released: Jan 16, 2026
- Priority: High (Closes CVE-2019-14378, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [qemu-system-data](https://patchblox.com/security/data/product/linux/qemu-system-data.md) | Ubuntu 25.04 (plucky) | 1:4.2-1ubuntu1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-14378](https://patchblox.com/security/data/cve/CVE-2019-14378.md) | High | qemu-block-supplemental: ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflowvia a large packet because it mishandles a c... | 8.8 | 0.1666 |  |
| [CVE-2019-15890](https://patchblox.com/security/data/cve/CVE-2019-15890.md) | High | qemu-guest-agent: libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass inip_input.c. | 7.5 | 0.0399 |  |

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Data as of 2026-11-12T19:57:06Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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