SB2022021034 - Anolis OS update for rpm

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2021-3521)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to an error in RPM's signature functionality, as RPM does not check the binding signature of subkeys before importing them. A remote attacker with ability to add malicious subkey to a legitimate public key can run malicious code on the system.

2) Out-of-bounds read (CVE-ID: CVE-2021-20266)

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

The vulnerability exists due to a boundary condition within the hdrblobInit() function in lib/header.c. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Remediation

Install update from vendor's website.

References

• https://anas.openanolis.cn/errata/detail/ANSA-2022:0009