# CVE-2017-15873: busybox: The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer Overflow tha...

CVE-2017-15873 is fixed in 6 products on 1 platform, first by busybox 1:1.27.2-1ubuntu4, released November 19, 2017. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2017-15873
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0132
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 23, 2017

## Description

The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer Overflow that may lead to a write access violation.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | busybox Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [busybox 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-busybox-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |
| Linux | busybox-initramfs Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [busybox-initramfs 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-busybox-initramfs-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |
| Linux | busybox-static Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [busybox-static 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-busybox-static-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |
| Linux | busybox-syslogd Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [busybox-syslogd 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-busybox-syslogd-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |
| Linux | udhcpc Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [udhcpc 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-udhcpc-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |
| Linux | udhcpd Ubuntu 18.04.6 LTS (bionic) | 1:1.27.2-1ubuntu4 | [udhcpd 1:1.27.2-1ubuntu4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-udhcpd-1-1.27.2-1ubuntu4.md) | Nov 19, 2017 |

---

Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo