Search criteria
9 vulnerabilities by c-ares_project
CVE-2023-32067 (GCVE-0-2023-32067)
Vulnerability from cvelistv5 – Published: 2023-05-25 22:49 – Updated: 2025-02-13 16:50
VLAI?
Summary
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.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
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CVE-2023-31147 (GCVE-0-2023-31147)
Vulnerability from cvelistv5 – Published: 2023-05-25 21:55 – Updated: 2025-02-13 16:49
VLAI?
Summary
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.
Severity ?
5.9 (Medium)
CWE
- CWE-330 - Use of Insufficiently Random Values
Assigner
References
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CVE-2023-31130 (GCVE-0-2023-31130)
Vulnerability from cvelistv5 – Published: 2023-05-25 21:45 – Updated: 2025-02-13 16:49
VLAI?
Summary
c-ares is an asynchronous resolver library. ares_inet_net_pton() is vulnerable to a buffer underflow for certain ipv6 addresses, in particular "0::00:00:00/2" was found to cause an issue. C-ares only uses this function internally for configuration purposes which would require an administrator to configure such an address via ares_set_sortlist(). However, users may externally use ares_inet_net_pton() for other purposes and thus be vulnerable to more severe issues. This issue has been fixed in 1.19.1.
Severity ?
4.1 (Medium)
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
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CVE-2023-31124 (GCVE-0-2023-31124)
Vulnerability from cvelistv5 – Published: 2023-05-25 21:09 – Updated: 2025-02-13 16:49
VLAI?
Summary
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 ?
CWE
- CWE-330 - Use of Insufficiently Random Values
Assigner
References
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CVE-2022-4904 (GCVE-0-2022-4904)
Vulnerability from cvelistv5 – Published: 2023-03-06 00:00 – Updated: 2025-12-02 20:25
VLAI?
Summary
A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string, which allows a possible arbitrary length stack overflow. This issue may cause a denial of service or a limited impact on confidentiality and integrity.
Severity ?
8.6 (High)
CWE
- CWE-20 - >CWE-119
Assigner
References
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CVE-2021-3672 (GCVE-0-2021-3672)
Vulnerability from cvelistv5 – Published: 2021-11-23 00:00 – Updated: 2024-10-15 17:14
VLAI?
Summary
A flaw was found in c-ares library, where a missing input validation check of host names returned by DNS (Domain Name Servers) can lead to output of wrong hostnames which might potentially lead to Domain Hijacking. The highest threat from this vulnerability is to confidentiality and integrity as well as system availability.
Severity ?
No CVSS data available.
CWE
Assigner
References
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CVE-2020-8277 (GCVE-0-2020-8277)
Vulnerability from cvelistv5 – Published: 2020-11-19 00:32 – Updated: 2025-04-30 22:24
VLAI?
Summary
A Node.js application that allows an attacker to trigger a DNS request for a host of their choice could trigger a Denial of Service in versions < 15.2.1, < 14.15.1, and < 12.19.1 by getting the application to resolve a DNS record with a larger number of responses. This is fixed in 15.2.1, 14.15.1, and 12.19.1.
Severity ?
No CVSS data available.
CWE
- CWE-400 - Denial of Service (CWE-400)
Assigner
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| NodeJS | Node |
Affected:
4.0 , < 4.*
(semver)
Affected: 5.0 , < 5.* (semver) Affected: 6.0 , < 6.* (semver) Affected: 7.0 , < 7.* (semver) Affected: 8.0 , < 8.* (semver) Affected: 9.0 , < 9.* (semver) Affected: 11.0 , < 11.* (semver) Affected: 12.0 , < 12.19.1 (semver) Affected: 13.0 , < 13.* (semver) Affected: 14.0 , < 14.15.1 (semver) Affected: 15.0 , < 15.2.1 (semver) |
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CVE-2017-1000381 (GCVE-0-2017-1000381)
Vulnerability from cvelistv5 – Published: 2017-07-07 17:00 – Updated: 2024-08-05 22:00
VLAI?
Summary
The c-ares function `ares_parse_naptr_reply()`, which is used for parsing NAPTR responses, could be triggered to read memory outside of the given input buffer if the passed in DNS response packet was crafted in a particular way.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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CVE-2016-5180 (GCVE-0-2016-5180)
Vulnerability from cvelistv5 – Published: 2016-10-03 15:00 – Updated: 2024-08-06 00:53
VLAI?
Summary
Heap-based buffer overflow in the ares_create_query function in c-ares 1.x before 1.12.0 allows remote attackers to cause a denial of service (out-of-bounds write) or possibly execute arbitrary code via a hostname with an escaped trailing dot.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
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