Ubuntu Security Notice 6944-1 - Dov Murik discovered that curl incorrectly handled parsing ASN.1 Generalized Time fields. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly obtain sensitive memory contents.
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Ubuntu Security Notice USN-6944-1
August 05, 2024
curl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
curl could be made to crash or expose information if it received specially
crafted network traffic.
Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries
Details:
Dov Murik discovered that curl incorrectly handled parsing ASN.1
Generalized Time fields. A remote attacker could use this issue to cause
curl to crash, resulting in a denial of service, or possibly obtain
sensitive memory contents.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 24.04 LTS
curl 8.5.0-2ubuntu10.2
libcurl3t64-gnutls 8.5.0-2ubuntu10.2
libcurl4t64 8.5.0-2ubuntu10.2
Ubuntu 22.04 LTS
curl 7.81.0-1ubuntu1.17
libcurl3-gnutls 7.81.0-1ubuntu1.17
libcurl3-nss 7.81.0-1ubuntu1.17
libcurl4 7.81.0-1ubuntu1.17
Ubuntu 20.04 LTS
curl 7.68.0-1ubuntu2.23
libcurl3-gnutls 7.68.0-1ubuntu2.23
libcurl3-nss 7.68.0-1ubuntu2.23
libcurl4 7.68.0-1ubuntu2.23
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6944-1
CVE-2024-7264
Package Information:
https://launchpad.net/ubuntu/+source/curl/8.5.0-2ubuntu10.2
https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.17
https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.23