SB2022092971 - Gentoo update for IBM Spectrum Protect

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2021-29672)

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

The vulnerability exists due to a boundary error when processing the current locale settings. A local user can trigger a stack-based buffer overflow and execute arbitrary code with elevated privileges.

2) Buffer overflow (CVE-ID: CVE-2021-3711)

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

The vulnerability exists due to a boundary error in EVP_PKEY_decrypt() function within implementation of the SM2 decryption. A remote attacker can send specially crafted SM2 content for decryption to trigger a buffer overflow by 62 bytes and execute arbitrary code on the target system.

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

3) Out-of-bounds read (CVE-ID: CVE-2021-3712)

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

The vulnerability exists due to a boundary condition when processing ASN.1 strings related to a confusion with NULL termination of strings in array. A remote attacker can pass specially crafted data to the application to trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

4) Stack-based buffer overflow (CVE-ID: CVE-2021-39048)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error. A local user can trigger a stack-based buffer overflow and crash the application.

5) Deserialization of Untrusted Data (CVE-ID: CVE-2021-4104)

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

The vulnerability exists due to insecure input validation when processing serialized data in JMSAppender, when the attacker has write access to the Log4j configuration. The attacker can provide TopicBindingName and TopicConnectionFactoryBindingName configurations causing JMSAppender to perform JNDI requests that result in remote code execution.

Note this issue only affects Log4j 1.2 when specifically configured to use JMSAppender, which is not the default.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/glsa/202209-02