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Multiple vulnerabilities in Windows GDI



Published: 2019-09-10 | Updated: 2019-12-25
Severity Low
Patch available YES
Number of vulnerabilities 2
CVE ID CVE-2019-1286
CVE-2019-1252
CWE ID CWE-476
CWE-125
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #2 is available.
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Advisory

UPDATED: 25.12.2019

- Updated title, description, CVSS score, CWE-ID and references sections for vulnerability #1.

- Updated bulletin title.

1) NULL pointer dereference

Severity: Low

CVSSv3: 7.9 [CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C] [PCI]

CVE-ID: CVE-2019-1286

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: Yes [Search exploit]

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a NULL pointer dereference error within the Windows GDI component. A local user can create a specially crafted application to trigger an out-f-bounds write and execute arbitrary code on the system with elevated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903, RT 8.1

Windows Server: 1803, 1903, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1286
https://cpr-zero.checkpoint.com/vulns/cprid-2138/
https://cpr-zero.checkpoint.com/assets/attachments/cprid-2138/poc.c

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

2) Out-of-bounds read

Severity: Low

CVSSv3: 3 [CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-1252

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

Exploit availability: Yes [Search exploit]

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Windows GDI component. A local user can use a specially crafted application to trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Windows: 7, 8.1, 10, 10 1607, 10 1703, 10 1709, 10 1803, 10 1809, 10 1903, RT 8.1

Windows Server: 1803, 1903, 2008, 2008 R2, 2012, 2012 R2, 2016, 2019

CPE External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1252

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.