7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
34.6%
Debian Security Advisory DSA-5419-1 [email protected]
https://www.debian.org/security/ Aron Xu
June 07, 2023 https://www.debian.org/security/faq
Package : c-ares
CVE ID : CVE-2023-31130 CVE-2023-32067
Debian Bug :
Two vunerabilities were discovered in c-ares, an asynchronous name
resolver library:
CVE-2023-31130
ares_inet_net_pton() is found to be 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, however external usage for other purposes may
cause more severe issues.
CVE-2023-32067
Target resolver may erroneously interprets a malformed UDP packet
with a lenght of 0 as a graceful shutdown of the connection, which
could cause a denial of service.
For the stable distribution (bullseye), these problems have been fixed in
version 1.17.1-1+deb11u3.
We recommend that you upgrade your c-ares packages.
For the detailed security status of c-ares please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/c-ares
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | all | libc-ares2 | <Â 1.17.1-1+deb11u3 | libc-ares2_1.17.1-1+deb11u3_all.deb |
Debian | 11 | all | libc-ares-dev | <Â 1.17.1-1+deb11u3 | libc-ares-dev_1.17.1-1+deb11u3_all.deb |
Debian | 11 | all | c-ares | <Â 1.17.1-1+deb11u3 | c-ares_1.17.1-1+deb11u3_all.deb |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
34.6%