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CVE-2023-31124

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Date: May 25, 2023

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARES_RANDOM_FILE will not be set, as seen when cross compiling aarch64 android. This will downgrade to using rand() as a fallback which could allow an attacker to take advantage of the lack of entropy by not using a CSPRNG. This issue was patched in version 1.19.1.

Severity Score

Related Resources (9)

https://security-tracker.debian.org/tracker/CVE-2023-31124
https://access.redhat.com/security/cve/CVE-2023-31124
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5Z5XFNXTNPTCBBVXFDNZQVLLIE6VRBY/
https://github.com/c-ares/c-ares/security/advisories/GHSA-54xr-f67r-4pc4
https://security.gentoo.org/glsa/202310-09
https://nvd.nist.gov/vuln/detail/CVE-2023-31124
https://github.com/c-ares/c-ares/releases/tag/cares-1_19_1
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBFWILTA33LOSV23P44FGTQQIDRJHIY7/
https://www.mend.io/vulnerability-database/CVE-2023-31124

Severity Score

Weakness Type (CWE)

Use of Insufficiently Random Values

CWE-330

Top Fix

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Upgrade Version

Upgrade to version c-ares - 1.19.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): LOW
Availability (A): NONE

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