Resource exhaustion in UnZip - CVE-2019-13232

Vulnerability identifier: #VU29255

CSH Severity: Medium

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-13232

CWE-ID: CWE-400

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack via a specially crafted zip file.

UnZip
Gentoo Linux
Oracle Solaris
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
Ubuntu
unzip (Alpine package)
unzip (Ubuntu package)
unzip (Red Hat package)

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Oracle Solaris - update to 11.4 SRU 71
unzip (Alpine package) - addressed in versions 6.0-r5, 6.0-r6
unzip (Ubuntu package) - addressed in versions 6.0-4ubuntu2.6, 6.0-20ubuntu1.1, 6.0-21ubuntu1.1, 6.0-28ubuntu4.1
unzip (Red Hat package) - addressed in versions 6.0-20.el7_7.1, 6.0-21.el7, 6.0-43.el8

• https://github.com/madler/unzip
• https://lists.debian.org/debian-lts-announce/2019/07/msg00005.html
• https://lists.debian.org/debian-lts-announce/2019/07/msg00027.html
• https://security.gentoo.org/glsa/202003-58
• https://security.netapp.com/advisory/ntap-20190814-0002/
• https://support.f5.com/csp/article/K80311892?utm_source=f5support&utm_medium=RSS
• https://www.bamsoftware.com/hacks/zipbomb/

• Denial of service in Info-ZIP UnZip
• Resource exhaustion in unzip (Alpine package)
• Gentoo update for UnZip
• Red Hat Enterprise Linux 7 update for unzip
• Red Hat Enterprise Linux 8 update for unzip
• Red Hat Enterprise Linux 7.7 Extended Update Support update for unzip
• Oracle Solaris update for thrid-party components
• Ubuntu update for unzip