SB2018100318 - Fedora 29 update for xerces-c27
Published: October 3, 2018 Updated: April 24, 2025
Security Bulletin ID
SB2018100318
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) DTD parsing stack overflow (CVE-ID: CVE-2016-4463)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to cause the target application to crash.
The vulnerability exists due to boundary error when processing DTD files. A remote unauthenticated attacker can cause a stack-based buffer overflow in the xml parser library by creating a specially crafted DTD file.
Successful exploitation of this vulnerability may result in denial of service.
2) NULL pointer dereference (CVE-ID: CVE-2017-12627)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition.
The weakness exists due to NULL pointer dereference. A remote attacker can cause the service to crash.
Remediation
Install update from vendor's website.