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Ubuntu 14.04 ESM 4665-2 Critical: curl Denial Of Service Advisory

ubuntu
Calendar Grey December 9, 2020
Dist Ubuntu Esm H88
In December 2020, Ubuntu released updates for ESM versions, rectifying two curl vulnerabilities and bolstering system protection.
Several security issues were fixed in curl.

Summary

Several security issues were fixed in curl.

Software Description:

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

Details:

USN-4665-1 fixed several vulnerabilities in curl. This update provides

the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Varnavas Papaioannou discovered that curl incorrectly handled FTP PASV

responses. An attacker could possibly use this issue to trick curl into

connecting to an arbitrary IP address and be used to perform port scanner

and other information gathering. (CVE-2020-8284)

It was discovered that curl incorrectly handled FTP wildcard matchins. A

remote attacker could possibly use this issue to cause curl to consume

resources and crash, resulting in a denial of service. (CVE-2020-8285)

Topics%20covered

Topics Covered

security advisory denial of service critical software update Ubuntu curl ESM

Update Instructions

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

Ubuntu 14.04 ESM:
  curl                            7.35.0-1ubuntu2.20+esm6
  libcurl3                        7.35.0-1ubuntu2.20+esm6
  libcurl3-gnutls                 7.35.0-1ubuntu2.20+esm6
  libcurl3-nss                    7.35.0-1ubuntu2.20+esm6

Ubuntu 12.04 ESM:
  curl                            7.22.0-3ubuntu4.29
  libcurl3                        7.22.0-3ubuntu4.29
  libcurl3-gnutls                 7.22.0-3ubuntu4.29
  libcurl3-nss                    7.22.0-3ubuntu4.29

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

References

https://ubuntu.com/security/notices/USN-4665-2

https://ubuntu.com/security/notices/USN-4665-1

CVE-2020-8284, CVE-2020-8285

Severity
critical
Lowest
Low
Medium
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Critical

December 09, 2020

Topics%20covered

Topics Covered

security advisory denial of service critical software update Ubuntu curl ESM

Package Information

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