#VU15363 Memory corruption in Libxml2

Published: 2018-10-12 | Updated: 2018-10-15

Vulnerability identifier: #VU15363

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18258


Exploitation vector: Network

Exploit availability: No

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

Vendor: Gnome Development Team


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

The vulnerability exists in the xz_head() function of the GNOME libxml2 library, as defined in the xzlib.c source code due to boundary error in the Lempel-Ziv-Markov (LZMA) decompression feature. A remote unauthenticated attacker can trick the victim into opening a specially crafted LZMA file that submits malicious input, trigger memory corruption and cause the application to crash.

Update to version 2.9.6.

Vulnerable software versions

Libxml2: 2.5.0 - 2.9.5

External links

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.

Latest bulletins with this vulnerability