SB2026021398 - openEuler 22.03 LTS SP4 update for opencryptoki

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Observable discrepancy (CVE-ID: CVE-2024-0914)

The vulnerability allows a remote attacker to perform a timing side-channel attack.

The vulnerability exists due to observable discrepancy when processing RSA PKCS#1 v1.5 padded ciphertexts. A remote attacker can perform unauthorized RSA ciphertext decryption or signing, even without access to the corresponding private key.

2) Incorrect Calculation of Buffer Size (CVE-ID: CVE-2026-22791)

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

The vulnerability exists due to a boundary error within the CKM_ECDH_AES_KEY_WRAP implementation in ecdh_aes_key_wrap() function in usr/lib/common/mech_ec.c. A remote attacker can pass a specially crafted public EC key to the application and perform a denial of service attack. 

3) Link following (CVE-ID: CVE-2026-23893)

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

The vulnerability exists due to an insecure link following issue. A local user can create a specially crafted symbolic link to a critical file on the system and overwrite it with root privileges when an administrator runs a PKCS#11 application.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-1381