#VU11557 Memory corruption in ZZIPlib - CVE-2018-6541

Vulnerability identifier: #VU11557

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-6541

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ZZIPlib
Universal components / Libraries / Libraries used by multiple products

Vendor: zziplib.sourceforge.net

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in __zzip_fetch_disk_trailer in zzip/zip.c due to bus error caused by loading of a misaligned address when handling disk64_trailer local entries. A remote attacker can submit a specially crafted zip file, trigger memory corruption and cause the service to crash.

Mitigation
Update to version 0.13.68.

Vulnerable software versions

ZZIPlib: 0.13.67

---

External links
https://github.com/gdraheim/zziplib/issues/16

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.