Ubuntu 5788-1: curl vulnerabilities | LinuxSecurity.com
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Ubuntu Security Notice USN-5788-1
January 05, 2023

curl vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

Details:

Hiroki Kurosawa discovered that curl incorrectly handled HSTS support
when certain hostnames included IDN characters. A remote attacker could
possibly use this issue to cause curl to use unencrypted connections. This
issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-43551)

It was discovered that curl incorrectly handled denials when using HTTP
proxies. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2022-43552)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.10:
   curl                            7.85.0-1ubuntu0.2
   libcurl3-gnutls                 7.85.0-1ubuntu0.2
   libcurl3-nss                    7.85.0-1ubuntu0.2
   libcurl4                        7.85.0-1ubuntu0.2

Ubuntu 22.04 LTS:
   curl                            7.81.0-1ubuntu1.7
   libcurl3-gnutls                 7.81.0-1ubuntu1.7
   libcurl3-nss                    7.81.0-1ubuntu1.7
   libcurl4                        7.81.0-1ubuntu1.7

Ubuntu 20.04 LTS:
   curl                            7.68.0-1ubuntu2.15
   libcurl3-gnutls                 7.68.0-1ubuntu2.15
   libcurl3-nss                    7.68.0-1ubuntu2.15
   libcurl4                        7.68.0-1ubuntu2.15

Ubuntu 18.04 LTS:
   curl                            7.58.0-2ubuntu3.22
   libcurl3-gnutls                 7.58.0-2ubuntu3.22
   libcurl3-nss                    7.58.0-2ubuntu3.22
   libcurl4                        7.58.0-2ubuntu3.22

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-5788-1
   CVE-2022-43551, CVE-2022-43552

Package Information:
   https://launchpad.net/ubuntu/+source/curl/7.85.0-1ubuntu0.2
   https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.7
   https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.15
   https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.22

Ubuntu 5788-1: curl vulnerabilities

January 5, 2023
Several security issues were fixed in curl.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.10 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in curl. Software Description: - curl: HTTP, HTTPS, and FTP client and client libraries Details: Hiroki Kurosawa discovered that curl incorrectly handled HSTS support when certain hostnames included IDN characters. A remote attacker could possibly use this issue to cause curl to use unencrypted connections. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-43551) It was discovered that curl incorrectly handled denials when using HTTP proxies. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-43552)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.10: curl 7.85.0-1ubuntu0.2 libcurl3-gnutls 7.85.0-1ubuntu0.2 libcurl3-nss 7.85.0-1ubuntu0.2 libcurl4 7.85.0-1ubuntu0.2 Ubuntu 22.04 LTS: curl 7.81.0-1ubuntu1.7 libcurl3-gnutls 7.81.0-1ubuntu1.7 libcurl3-nss 7.81.0-1ubuntu1.7 libcurl4 7.81.0-1ubuntu1.7 Ubuntu 20.04 LTS: curl 7.68.0-1ubuntu2.15 libcurl3-gnutls 7.68.0-1ubuntu2.15 libcurl3-nss 7.68.0-1ubuntu2.15 libcurl4 7.68.0-1ubuntu2.15 Ubuntu 18.04 LTS: curl 7.58.0-2ubuntu3.22 libcurl3-gnutls 7.58.0-2ubuntu3.22 libcurl3-nss 7.58.0-2ubuntu3.22 libcurl4 7.58.0-2ubuntu3.22 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5788-1

CVE-2022-43551, CVE-2022-43552

Severity
Ubuntu Security Notice USN-5788-1

Package Information

https://launchpad.net/ubuntu/+source/curl/7.85.0-1ubuntu0.2 https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.7 https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.15 https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.22

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