#VU82299 Heap-based buffer overflow in Zlib - CVE-2023-45853
Published: October 23, 2023
Vulnerability identifier: #VU82299
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-45853
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Zlib
Zlib
Software vendor:
GNU
GNU
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the zipOpenNewFileInZip4_64() function from MiniZip. A remote attacker can create a specially crafted archive, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
External links
- https://www.winimage.com/zLibDll/minizip.html
- https://github.com/madler/zlib/pull/843
- https://chromium.googlesource.com/chromium/src/+/d709fb23806858847131027da95ef4c548813356
- https://chromium.googlesource.com/chromium/src/+/de29dd6c7151d3cd37cb4cf0036800ddfb1d8b61
- https://github.com/madler/zlib/blob/ac8f12c97d1afd9bafa9c710f827d40a407d3266/contrib/README.contrib#L1-L4
- http://www.openwall.com/lists/oss-security/2023/10/20/9