CVE-2017-9048: Buffer Overflow
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.
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2017-9048?
CVE-2017-9048 is classified as a critical vulnerability due to the potential for a stack-based buffer overflow leading to remote code execution.
How do I fix CVE-2017-9048?
To fix CVE-2017-9048, update libxml2 to versions 2.9.4+dfsg1-7+deb10u4 or later for Debian systems.
What systems are affected by CVE-2017-9048?
CVE-2017-9048 affects libxml2 versions prior to 2.9.4 and may impact various Debian-based systems.
What is the impact of CVE-2017-9048 exploitation?
Exploitation of CVE-2017-9048 can allow attackers to execute arbitrary code, potentially compromising the affected system.
Is CVE-2017-9048 a widely known vulnerability?
Yes, CVE-2017-9048 is a well-documented vulnerability that has been reported and discussed in various security advisories.