CVE-2022-27775: Infoleak
An information disclosure vulnerability exists in curl 7.65.0 to 7.82.0 are vulnerable that by using an IPv6 address that was in the connection pool but with a different zone id it could reuse a connection instead.
Other sources
Due to errors in the logic, the config matching function did not take the IPv6 address zone id into account which could lead to libcurl reusing wrong connection when one transfer uses a zone id and subsequent transfer uses another.
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/curlto a version that resolves this vulnerability.Fixed in 7.88.1-10+deb12u15Fixed in 7.88.1-10+deb12u5Fixed in 8.14.1-2+deb13u5Fixed in 8.14.1-2+deb13u7Fixed in 8.22.0-1Fixed in 8.23.0-1 - Upgrade
Upgrade
alpine/curlto a version that resolves this vulnerability.Fixed in 7.79.1-r1 - Upgrade
Upgrade
alpine/curlto a version that resolves this vulnerability.Fixed in 7.80.0-r1 - Upgrade
Upgrade
alpine/curlto a version that resolves this vulnerability.Fixed in 7.83.0-r0 - Upgrade
Upgrade
debian/curlto a version that resolves this vulnerability.Fixed in 7.83.0-1 - Upgrade
Upgrade
redhat/curlto a version that resolves this vulnerability.Fixed in 7.83.0
Event History
Frequently Asked Questions
What is CVE-2022-27775?
CVE-2022-27775 is an information disclosure vulnerability in curl version 7.65.0 to 7.82.0.
How severe is CVE-2022-27775?
CVE-2022-27775 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2022-27775?
Versions 7.65.0 to 7.82.0 of curl are affected by CVE-2022-27775.
How can I fix CVE-2022-27775?
To fix CVE-2022-27775, update curl to version 7.88.1-10+deb12u4 or higher.
Are there any references for CVE-2022-27775?
Yes, you can find more information about CVE-2022-27775 at the following references: [link1](https://security-tracker.debian.org/tracker/CVE-2022-27775), [link2](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27775), [link3](https://curl.se/docs/CVE-2022-27775.html).