OESA-2023-1313

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1313

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2023-1313.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2023-1313

Upstream

CVE-2023-32067

Published

2023-06-03T11:05:19Z

Modified

2025-09-03T06:19:12.613351Z

Summary

c-ares security update

Details

This is c-ares, an asynchronous resolver library. It is intended for applications which need to perform DNS queries without blocking, or need to perform multiple

Security Fix(es):

c-ares is an asynchronous resolver library. c-ares is vulnerable to denial of service. If a target resolver sends a query, the attacker forges a malformed UDP packet with a length of 0 and returns them to the target resolver. The target resolver erroneously interprets the 0 length as a graceful shutdown of the connection. This issue has been patched in version 1.19.1.(CVE-2023-32067)

c-ares is an asynchronous resolver library. When /dev/urandom or RtlGenRandom() are unavailable, c-ares uses rand() to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand() so will generate predictable output. Input from the random number generator is fed into a non-compilant RC4 implementation and may not be as strong as the original RC4 implementation. No attempt is made to look for modern OS-provided CSPRNGs like arc4random() that is widely available. This issue has been fixed in version 1.19.1.(CVE-2023-31147)

Database specific

{
    "severity": "High"
}

References

Affected packages

openEuler:22.03-LTS-SP1 / c-ares

Package

Name: c-ares
Purl: pkg:rpm/openEuler/c-ares&distro=openEuler-22.03-LTS-SP1

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.18.1-6.oe2203sp1

Ecosystem specific

{
    "aarch64": [
        "c-ares-debuginfo-1.18.1-6.oe2203sp1.aarch64.rpm",
        "c-ares-devel-1.18.1-6.oe2203sp1.aarch64.rpm",
        "c-ares-debugsource-1.18.1-6.oe2203sp1.aarch64.rpm",
        "c-ares-1.18.1-6.oe2203sp1.aarch64.rpm"
    ],
    "src": [
        "c-ares-1.18.1-6.oe2203sp1.src.rpm"
    ],
    "noarch": [
        "c-ares-help-1.18.1-6.oe2203sp1.noarch.rpm"
    ],
    "x86_64": [
        "c-ares-debuginfo-1.18.1-6.oe2203sp1.x86_64.rpm",
        "c-ares-devel-1.18.1-6.oe2203sp1.x86_64.rpm",
        "c-ares-debugsource-1.18.1-6.oe2203sp1.x86_64.rpm",
        "c-ares-1.18.1-6.oe2203sp1.x86_64.rpm"
    ]
}