VulnerabilityModified

CVE-2017-15873

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.

MEDIUM 5.5EPSS 1.32%

Does this matter?

Lower severity and a low EPSS score (1.32%). Track it; it rarely justifies an emergency change on its own.

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.

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS: 1.32% probability · 71th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-190
Affected: busybox/busybox · debian/debian linux · canonical/ubuntu linux
Source: cve@mitre.org

EPSS trend

EPSS 1.3% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://bugs.busybox.net/show_bug.cgi?id=10431Exploit, Issue Tracking, Third Party Advisory
https://git.busybox.net/busybox/commit/?id=0402cb32df015d9372578e3db27db47b33d5c7b0Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3935-1/Third Party Advisory
https://bugs.busybox.net/show_bug.cgi?id=10431Exploit, Issue Tracking, Third Party Advisory
https://git.busybox.net/busybox/commit/?id=0402cb32df015d9372578e3db27db47b33d5c7b0Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3935-1/Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.