5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
0.002 Low
EPSS
Percentile
54.0%
A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using alarm()
and siglongjmp()
. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | curl | <ย 7.88.1-10 | curl_7.88.1-10_all.deb |
Debian | 11 | all | curl | <=ย 7.74.0-1.3+deb11u11 | curl_7.74.0-1.3+deb11u11_all.deb |
Debian | 10 | all | curl | <=ย 7.64.0-4+deb10u2 | curl_7.64.0-4+deb10u2_all.deb |
Debian | 999 | all | curl | <ย 7.88.1-10 | curl_7.88.1-10_all.deb |
Debian | 13 | all | curl | <ย 7.88.1-10 | curl_7.88.1-10_all.deb |