SB2021072791 - Multiple vulnerabilities in Tinyexr

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper Validation of Array Index (CVE-ID: CVE-2020-18428)

CWE-ID: CWE-129 - Improper Validation of Array Index

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

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an array index error within the tinyexr::SaveEXR component. A remote attacker can trigger an array index error and crash the application.

2) Improper Validation of Array Index (CVE-ID: CVE-2020-18430)

CWE-ID: CWE-129 - Improper Validation of Array Index

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

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an array index error within the tinyexr::DecodeEXRImage() function. A remote attacker can trigger an array index error and crash the application.

3) Integer overflow (CVE-ID: CVE-2020-19490)

CWE-ID: CWE-190 - Integer overflow

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

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow within the tinyexr::DecodePixelData() function in tinyexr.h. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://github.com/ChijinZ/security_advisories/tree/master/tinyexr_65f9859
• https://github.com/syoyo/tinyexr/issues/109
• https://github.com/syoyo/tinyexr/issues/108
• https://github.com/syoyo/tinyexr/commit/a685e3332f61cd4e59324bf3f669d36973d64270
• https://github.com/syoyo/tinyexr/issues/124