NULL pointer dereference in p7zip - CVE-2016-9296
Published: August 3, 2020
Vulnerability identifier: #VU33136
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-9296
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in function CInArchive::ReadAndDecodePackedStreams in CPP/7zip/Archive/7z/7zIn.cpp, as used in the 7z.so library and in 7z applications. A remote attacker can perform a denial of service (DoS) attack via a specially crafted 7z file.
Affected software
p7zip
Fedora
openEuler
p7zip
linux-firmware (Alpine package)
Fedora
openEuler
p7zip
linux-firmware (Alpine package)
How to mitigate CVE-2016-9296
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..
p7zip - addressed in versions 16.02-2.el6, 16.02-2.el7, 16.02-2.fc23, 16.02-2.fc24, 16.02-2.fc25
p7zip - update to 16.02-3
linux-firmware (Alpine package) - update to 20180615-r2
p7zip - update to 16.02-3
linux-firmware (Alpine package) - update to 20180615-r2