CVE-2023-31147 Insufficient randomness in generation of DNS query IDs in c-ares

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 i...

CVE-2023-31147 Insufficient randomness in generation of DNS query IDs in c-ares

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 i...

CVE-2023-31130 Buffer Underwrite in ares_inet_net_pton()

c-ares is an asynchronous resolver library. aresinetnetpton 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...

CVE-2023-31130

CVE-2023-31130 affects the c-ares asynchronous DNS library. The vulnerability is a buffer underflow/underwrite in ares_inet_net_pton() for IPv6 addresses such as 0::00:00:00/2. Affected versions are prior to the fix, with the issue addressed in c-ares 1.19.1. Multiple advisories reference upgrade...

CVE-2023-31130 Buffer Underwrite in ares_inet_net_pton()

c-ares is an asynchronous resolver library. aresinetnetpton 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...

CVE-2023-31130 Buffer Underwrite in ares_inet_net_pton()

c-ares is an asynchronous resolver library. aresinetnetpton 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...

CVE-2023-31130

c-ares is an asynchronous resolver library. aresinetnetpton 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...

CVE-2023-31124 AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE 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 ...

CVE-2023-31124

CVE-2023-31124 concerns c-ares where cross-compiling with autotools can leave CARES_RANDOM_FILE unset, causing a fallback to rand() for DNS query ID entropy rather than a CSPRNG. The result is reduced randomness and potential predictability of DNS IDs, raising security risk under entropy-limited ...

CVE-2023-31124 AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE 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 ...

CVE-2023-31124 AutoTools does not set CARES_RANDOM_FILE during cross compilation

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE 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 ...

Buffer Underwrite ('Buffer Underflow')

c-ares is an asynchronous resolver library. aresinetnetpton 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...

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 i...

c-ares 安全特征问题漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in versions prior to c-ares 1.19.1, which stems from a lack of entropy that allows an attacker to exploit entropy by not using CSPRNG...

c-ares 缓冲区错误漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in c-ares versions prior to 1.19.1 that stems from the presence of a buffer overflow...

Use of Insufficiently Random Values

c-ares is an asynchronous resolver library. When cross-compiling c-ares and using the autotools build system, CARESRANDOMFILE 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 ...

c-ares 资源管理错误漏洞

c-ares is a C library for asynchronous DNS requests from the individual developers of c-ares. A security vulnerability exists in c-ares versions prior to 1.19.1, which stems from vulnerability to denial-of-service attacks...

CVE-2023-32067

A vulnerability was found in c-ares. This issue occurs due to a 0-byte UDP payload that can cause a Denial of Service...

CVE-2023-31147

A vulnerability was found in c-ares. This issue occurs when /dev/urandom or RtlGenRandom are unavailable, c-ares will use rand to generate random numbers used for DNS query ids. This is not a CSPRNG, and it is also not seeded by srand, so it will generate predictable output...

CVE-2023-31130

A vulnerability was found in c-ares. This issue occurs in the aresinetnetpton function, which is vulnerable to a buffer underflow for certain ipv6 addresses. "0::00:00:00/2" in particular was found to cause an issue. C-ares only uses this function internally for configuration purposes, which woul...