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AUSCERT External Security Bulletin Redistribution
ESB-2022.2316
USN-5412-1: curl vulnerabilities
12 May 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: curl
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2022-27782 CVE-2022-27781 CVE-2022-27780
Original Bulletin:
https://ubuntu.com/security/notices/USN-5412-1
Comment: CVSS (Max): 6.3 CVE-2022-27780 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
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USN-5412-1: curl vulnerabilities
11 May 2022
Several security issues were fixed in curl.
Releases
o Ubuntu 22.04 LTS
o Ubuntu 21.10
o Ubuntu 20.04 LTS
o Ubuntu 18.04 LTS
Packages
o curl - HTTP, HTTPS, and FTP client and client libraries
Details
Axel Chong discovered that curl incorrectly handled percent-encoded URL
separators. A remote attacker could possibly use this issue to trick curl
into using the wrong URL and bypass certain checks or filters. This issue
only affected Ubuntu 22.04 LTS. ( CVE-2022-27780 )
Florian Kohnhuser discovered that curl incorrectly handled returning a
TLS server's certificate chain details. A remote attacker could possibly
use this issue to cause curl to stop responding, resulting in a denial of
service. ( CVE-2022-27781 )
Harry Sintonen discovered that curl incorrectly reused a previous
connection when certain options had been changed, contrary to expectations.
( CVE-2022-27782 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 22.04
o libcurl3-gnutls - 7.81.0-1ubuntu1.2
o libcurl3-nss - 7.81.0-1ubuntu1.2
o libcurl4 - 7.81.0-1ubuntu1.2
o curl - 7.81.0-1ubuntu1.2
Ubuntu 21.10
o libcurl3-gnutls - 7.74.0-1.3ubuntu2.2
o libcurl3-nss - 7.74.0-1.3ubuntu2.2
o libcurl4 - 7.74.0-1.3ubuntu2.2
o curl - 7.74.0-1.3ubuntu2.2
Ubuntu 20.04
o libcurl3-gnutls - 7.68.0-1ubuntu2.11
o libcurl3-nss - 7.68.0-1ubuntu2.11
o libcurl4 - 7.68.0-1ubuntu2.11
o curl - 7.68.0-1ubuntu2.11
Ubuntu 18.04
o libcurl3-gnutls - 7.58.0-2ubuntu3.18
o libcurl3-nss - 7.58.0-2ubuntu3.18
o libcurl4 - 7.58.0-2ubuntu3.18
o curl - 7.58.0-2ubuntu3.18
In general, a standard system update will make all the necessary changes.
References
o CVE-2022-27780
o CVE-2022-27782
o CVE-2022-27781
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