Heap-based buffer overflow in ZZIPlib - CVE-2017-5976

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in Heap-based buffer overflow in the zzip_mem_entry_extra_block function in memdisk.c in zziplib 0.13.62. A remote attacker can use a crafted ZIP file. to 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.

Affected software

How to mitigate CVE-2017-5976

External References

• http://www.debian.org/security/2017/dsa-3878
• http://www.openwall.com/lists/oss-security/2017/02/14/3
• http://www.securityfocus.com/bid/96268
• https://blogs.gentoo.org/ago/2017/02/09/zziplib-heap-based-buffer-overflow-in-zzip_mem_entry_extra_block-memdisk-c/

Related Security Bulletins

• Heap-based buffer overflow in zziplib.sourceforge.net ZZIPlib
• Heap-based buffer overflow in zziplib (Alpine package)
• Arch Linux update for zziplib
• Fedora 28 update for zziplib