SB2026052531 - Anolis OS update for bouncycastle

Description

This security bulletin contains information about 3 vulnerabilities.

1) LDAP injection (CVE-ID: CVE-2026-0636)

CWE-ID: CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')

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

The vulnerability allows a remote attacker to manipulate LDAP queries.

The vulnerability exists due to improper neutralization of special elements used in an LDAP query in LDAPStoreHelper when processing user-supplied input for LDAP queries. A remote attacker can supply crafted input to manipulate LDAP queries.

This issue is associated with the prov modules.

2) Resource exhaustion (CVE-ID: CVE-2026-3505)

CWE-ID: CWE-400 - Resource exhaustion

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

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to uncontrolled resource consumption in the bcpg PGP AEAD processing when parsing crafted PGP data with an unbounded AEAD chunk size. A remote attacker can send specially crafted PGP data to cause a denial of service.

Exploitation leads to pre-authentication resource exhaustion.

3) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2026-5588)

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

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

The vulnerability allows a remote attacker to bypass signature verification.

The vulnerability exists due to use of a broken or risky cryptographic algorithm in the PKIX draft CompositeVerifier when processing composite signatures. A remote attacker can provide an empty signature sequence to bypass signature verification.

Remediation

Install update from vendor's website.

References

• https://anas.openanolis.cn/errata/detail/ANSA-2026:0602