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nvd[email protected]NVD:CVE-2023-31130
HistoryMay 25, 2023 - 10:15 p.m.

CVE-2023-31130

2023-05-2522:15:09
CWE-124
CWE-787
web.nvd.nist.gov
3
c-ares
ipv6
buffer underflow

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

6.1 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

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.

Affected configurations

NVD
Node
c-ares_projectc-aresRange<1.19.1
Node
fedoraprojectfedoraMatch37
OR
fedoraprojectfedoraMatch38
Node
debiandebian_linuxMatch10.0
OR
debiandebian_linuxMatch11.0

6.4 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

6.1 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%