Описание
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.
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.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 6 | c-ares | Out of support scope | ||
| Red Hat Enterprise Linux 7 | c-ares | Out of support scope | ||
| Red Hat Enterprise Linux 8 | c-ares | Affected | ||
| Red Hat Enterprise Linux 8 | nodejs | Fixed | RHSA-2023:4034 | 12.07.2023 |
| Red Hat Enterprise Linux 8 | nodejs | Fixed | RHSA-2023:4035 | 12.07.2023 |
| Red Hat Enterprise Linux 8.6 Extended Update Support | nodejs | Fixed | RHSA-2023:4033 | 12.07.2023 |
| Red Hat Enterprise Linux 9 | nodejs | Fixed | RHSA-2023:3577 | 14.06.2023 |
| Red Hat Enterprise Linux 9 | nodejs | Fixed | RHSA-2023:3586 | 14.06.2023 |
| Red Hat Enterprise Linux 9 | c-ares | Fixed | RHSA-2023:6635 | 07.11.2023 |
| Red Hat Enterprise Linux 9 | c-ares | Fixed | RHSA-2023:6635 | 07.11.2023 |
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Дополнительная информация
Статус:
EPSS
5.9 Medium
CVSS3
Связанные уязвимости
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.
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.
c-ares is an asynchronous resolver library. When /dev/urandom or RtlGe ...
EPSS
5.9 Medium
CVSS3