DEBIAN-CVE-2023-28320

Source
https://security-tracker.debian.org/tracker/CVE-2023-28320
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-28320.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2023-28320
Upstream
Published
2023-05-26T21:15:15Z
Modified
2026-09-15T09:01:26Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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.

References

Affected packages

Debian:12 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.88.1-10

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-28320.json"

Debian:13 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.88.1-10

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-28320.json"

Debian:14 / curl

Package

Name
curl
Purl
pkg:deb/debian/curl?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
7.88.1-10

Ecosystem specific

{
    "urgency": "unimportant"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-28320.json"