CVE-2017-9048 Information

Description

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a stack-based buffer overflow. The function xmlSnprintfElementContent in valid.c is supposed to recursively dump the element content definition into a char buffer ‘buf’ of size ‘size’. At the end of the routine the function may strcat two more characters without checking whether the current strlen(buf) + 2 size. This vulnerability causes programs that use libxml2 such as PHP to crash.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.debian.org/security/2017/dsa-3952 http://www.openwall.com/lists/oss-security/2017/05/15/1 http://www.securityfocus.com/bid/98556 https://security.gentoo.org/glsa/201711-01

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5