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| purl | pkg:deb/debian/c-ares@1.17.1-1%2Bdeb11u3 |
| Vulnerability | Summary | Fixed by |
|---|---|---|
|
VCID-c4tz-3xt6-3kec
Aliases: CVE-2023-31147 GHSA-8r8p-23f3-64c2 |
Use of Insufficiently Random Values 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. |
Affected by 0 other vulnerabilities. |
|
VCID-urk1-zh41-7ya5
Aliases: CVE-2024-25629 |
c-ares is a C library for asynchronous DNS requests. `ares__read_line()` is used to parse local configuration files such as `/etc/resolv.conf`, `/etc/nsswitch.conf`, the `HOSTALIASES` file, and if using a c-ares version prior to 1.27.0, the `/etc/hosts` file. If any of these configuration files has an embedded `NULL` character as the first character in a new line, it can lead to attempting to read memory prior to the start of the given buffer which may result in a crash. This issue is fixed in c-ares 1.27.0. No known workarounds exist. |
Affected by 0 other vulnerabilities. |
|
VCID-vmy4-5p4s-mbec
Aliases: CVE-2023-31124 GHSA-54xr-f67r-4pc4 |
Use of Insufficiently Random Values 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. |
Affected by 0 other vulnerabilities. |
| Vulnerability | Summary | Aliases |
|---|---|---|
| VCID-ck7e-6fvp-s3ca | 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. |
CVE-2022-4904
|
| VCID-csvq-98m3-4fdp | c-ares: ares_destroy() with pending ares_getaddrinfo() leads to Use-After-Free |
CVE-2020-14354
|
| VCID-kuz8-afhc-pqaf | 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. |
CVE-2023-31130
GHSA-x6mf-cxr9-8q6v |
| VCID-meaf-ex7v-yya8 | 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
GHSA-9g78-jv2r-p7vc |
| VCID-njsk-6t9c-gqaz | Buffer overflow vulnerability in c-ares before 1_16_1 thru 1_17_0 via function ares_parse_soa_reply in ares_parse_soa_reply.c. |
CVE-2020-22217
|
| VCID-nxtc-6zwj-mkha | 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. |
CVE-2021-3672
|
| VCID-vg17-netw-8ybq | 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. |
CVE-2020-8277
|