CVE-2015-9261

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-26 · updated 2026-06-17
Weakness: CWE-476

Description

huft_build in archival/libarchive/decompress_gunzip.c in BusyBox before 1.27.2 misuses a pointer, causing segfaults and an application crash during an unzip operation on a specially crafted ZIP file.

Affected products

busybox: before 1.27.2 — fixed in 1.27.2
Canonical Ubuntu Linux: 14.04, 16.04
Debian Linux: 8.0, 9.0

How to fix

Upgrade to a fixed version: busybox 1.27.2. Check the vendor advisory for mitigations.

References

http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html
http://packetstormsecurity.com/files/167552/Nexans-FTTO-GigaSwitch-Outdated-Components-Hardcoded-Backdoor.html
http://seclists.org/fulldisclosure/2019/Jun/18
http://seclists.org/fulldisclosure/2019/Sep/7
http://seclists.org/fulldisclosure/2020/Aug/20
http://seclists.org/fulldisclosure/2022/Jun/36
http://www.openwall.com/lists/oss-security/2015/10/25/3
https://bugs.debian.org/803097
https://git.busybox.net/busybox/commit/?id=1de25a6e87e0e627aa34298105a3d17c60a1f44e
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html

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