Summary
[1.19.1-1]
- Resolves: rhbz#2209564 - CVE-2023-31124 c-ares: AutoTools does not set CARES_RANDOM_FILE during cross compilation [rhel-9]
- Resolves: rhbz#2209556 - CVE-2023-31130 c-ares: Buffer Underwrite in ares_inet_net_pton() [rhel-9]
- Resolves: rhbz#2209550 - CVE-2023-31147 c-ares: Insufficient randomness in generation of DNS query IDs [rhel-9]
- Resolves: rhbz#2209520 - CVE-2023-32067 c-ares: 0-byte UDP payload Denial of Service [rhel-9.3.0]
- Resolves: rhbz#2210370 - Rebase c-ares for RHEL 9.3
[1.17.1-6]
- Resolves: rhbz#2170868 - c-ares: buffer overflow in config_sortlist() due to missing string length check [rhel-9]
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Oracle Linux · 9 | c-ares | 0:1.19.1-1.el9 |
| Oracle Linux · 9 | c-ares-devel | 0:1.19.1-1.el9 |
Vulnerabilities 4
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High 8.6
A flaw was found in the c-ares package. The ares_set_sortlist is missing checks about the validity of the input string,…
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Medium 5.9
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 outp…
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Medium 4.1
Buffer Underwrite in ares_inet_net_pton()
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 wh…
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Low 3.7
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, 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 …