SB2023061715 - openEuler 20.03 LTS SP1 update for c-ares

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Buffer Underwrite ('Buffer Underflow') (CVE-ID: CVE-2023-31130)

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

The vulnerability exists due to a buffer underflow when using certain IPv6 addresses, such as 0::00:00:00/2". A local privileged user can trigger a boundary error and crash the service.

2) Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CVE-ID: CVE-2023-31147)

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to usage of a rand() function in case /dev/urandom or RtlGenRandom() are unavailable. A remote attacker can perform spoofing attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1357