Quantum Secular Labs / Blog / Advisories
CVE-2018-18933: Foxitsoftware Foxit Reader: Memory corruption
CVE-2018-18933 is rated critical with a CVSS v3.0 base score of 9.1 and affects Foxitsoftware Foxit Reader. Per its scoring, it can be exploited over the network, without authentication, without any user interaction.
Vulnerability description
The u3d plugin 9.3.0.10809 (aka plugins\U3DBrowser.fpi) in FoxitReader.exe in Foxit Reader 9.3.0.10826 allows remote attackers to cause a denial of service (out-of-bounds read) or obtain sensitive information via a U3D sample because of a "Read Access Violation near NULL starting at FoxitReader!safe_vsnprintf+0x00000000002c4330" issue.
Severity breakdown
CVSS v3.0 9.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
- Attack complexity: Low. No special conditions; the attack can be repeated reliably.
- Privileges required: None. No account or prior access is needed.
- User interaction: None. No action from any user is needed.
- Scope: Unchanged. Impact stays within the vulnerable component.
- Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
- Integrity impact: None. No loss of integrity.
- Availability impact: High. Total loss of availability; the component can be shut down.
Underlying weakness
CWE-125: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
Affected products
- Foxitsoftware Foxit Reader: 9.3.0.10826
- Foxitsoftware U3d: 9.3.0.10809
References
- https://www.foxitsoftware.com/support/security-bulletins.php
- https://github.com/Yan-1-20/Yan-1-20.github.io/blob/master/2018/11/02/2018/11/2018-11-02/index.html
- https://github.com/Yan-1-20/Yan-1-20.github.io/blob/master/2018/11/10/2018/11/2018-11-10/index.html
- https://yan-1-20.github.io/2018/11/02/2018/11/2018-11-02/
- https://yan-1-20.github.io/2018/11/10/2018/11/2018-11-10/