SB2018091501 - Information disclosure in Microsoft Windows GDI

Description

This security bulletin contains information about 2 vulnerabilities.

1) Buffer over-read (CVE-ID: CVE-2018-8422)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing untrusted data within the Windows GDI component. A remote attacker can create a specially specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and obtain contents of memory on the system.

2) Buffer over-read (CVE-ID: CVE-2018-8424)

CWE-ID: CWE-125 - Out-of-bounds read

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing untrusted data within the Windows GDI component. A remote attacker can create a specially specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8422
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8424