suse-su-2023:2477-1
Vulnerability from csaf_suse
Published
2023-06-09 10:43
Modified
2023-06-09 10:43
Summary
Security update for libcares2

Notes

Title of the patch
Security update for libcares2
Description of the patch
This update for libcares2 fixes the following issues: - CVE-2023-32067: Fixed a denial of service that could be triggered by a 0-byte UDP payload (bsc#1211604). - CVE-2023-31147: Fixed an insufficient randomness in generation of DNS query IDs (bsc#1211605). - CVE-2023-31130: Fixed a buffer underflow when configuring specific IPv6 addresses (bsc#1211606). - CVE-2023-31124: Fixed a build issue when cross-compiling that could lead to insufficient randomness (bsc#1211607).
Patchnames
SUSE-2023-2477,SUSE-OpenStack-Cloud-9-2023-2477,SUSE-OpenStack-Cloud-Crowbar-9-2023-2477,SUSE-SLE-SAP-12-SP4-2023-2477,SUSE-SLE-SDK-12-SP5-2023-2477,SUSE-SLE-SERVER-12-SP2-BCL-2023-2477,SUSE-SLE-SERVER-12-SP4-ESPOS-2023-2477,SUSE-SLE-SERVER-12-SP4-LTSS-2023-2477,SUSE-SLE-SERVER-12-SP5-2023-2477,SUSE-SLE-WE-12-SP5-2023-2477
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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          "category": "impact",
          "date": "2023-06-09T10:43:56Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2023-31130"
    },
    {
      "cve": "CVE-2023-31147",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2023-31147"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
        }
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      "scores": [
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          "cvss_v3": {
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
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    },
    {
      "cve": "CVE-2023-32067",
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        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
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      "threats": [
        {
          "category": "impact",
          "date": "2023-06-09T10:43:56Z",
          "details": "important"
        }
      ],
      "title": "CVE-2023-32067"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.