SB2022060305 - Multiple vulnerabilities in IBM DataPower Gateway Virtual Edition

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Improper input validation (CVE-ID: CVE-2014-8147)

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to the resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C uses an integer data type that is inconsistent with a header file. A remote unauthenticated attacker can supply specially crafted text file, trigger incorrect malloc followed by invalid free and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Heap-based buffer overflow (CVE-ID: CVE-2014-8146)

The vulnerability allows a remote attacker to cause Dos condition or execute arbitrary code on the target system.

The vulnerability exists due to heap-based buffer overflow when the resolveImplicitLevels function in common/ubidi.c in the Unicode Bidirectional Algorithm implementation in ICU4C does not properly track directionally isolated pieces of text. A remote unauthenticated attacker can supply specially crafted text file, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Integer overflow (CVE-ID: CVE-2020-10531)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow in UnicodeString::doAppend() function in common/unistr.cpp. A remote attacker can pass specially crafted string to the application that is using the vulnerable library, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

4) Double free memory error (CVE-ID: CVE-2017-14952)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to double free memory error in i18n/zonemeta.cpp in International Components for Unicode (ICU) for C/C++. A remote unauthenticated attacker can supply a ca specially crafted string, aka a "redundant UVector entry clean up function call" issue, trigger memory corruption and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Remediation

Install update from vendor's website.

References

• https://www.ibm.com/blogs/psirt/security-bulletin-ibm-datapower-gateway-virtual-edition-uses-out-of-date-icu-libraries-in-open-vm-tools/"
• https://www.ibm.com/blogs/psirt/security-bulletin-ibm-datapower-gateway-virtual-edition-uses-out-of-date-icu-libraries-in-open-vm-tools/</a><br>
• https://www.ibm.com/support/pages/node/6591431<br><br></p>