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QSN-4129-1: curl vulnerabilities

September 11, 2019

Summary

Several security issues were fixed in curl.

Details

Thomas Vegas discovered that curl incorrectly handled memory when using Kerberos over FTP. A remote attacker could use this issue to crash curl, resulting in a denial of service. (CVE-2019-5481)

Thomas Vegas discovered that curl incorrectly handled memory during TFTP transfers. A remote attacker could use this issue to crash curl, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-5482)

References

https://usn.ubuntu.com/4129-1

http://people.canonical.com/~ubuntu-security/cve/CVE-2019-5481

http://people.canonical.com/~ubuntu-security/cve/CVE-2019-5482

Update

A general update will usually fix all issues, but to make sure, you can check your current version with:

$ dpkg -l curl

If the current version you have is before 7.47.0-1ubuntu2.14, run the following:

$ sudo apt-get update
$ sudo apt-get install curl

A general update will usually fix all issues, but to make sure, you can check your current version with:

$ dpkg -l libcurl3

If the current version you have is before 7.47.0-1ubuntu2.14, run the following:

$ sudo apt-get update
$ sudo apt-get install libcurl3

A general update will usually fix all issues, but to make sure, you can check your current version with:

$ dpkg -l libcurl3-gnutls

If the current version you have is before 7.47.0-1ubuntu2.14, run the following:

$ sudo apt-get update
$ sudo apt-get install libcurl3-gnutls

A general update will usually fix all issues, but to make sure, you can check your current version with:

$ dpkg -l libcurl3-nss

If the current version you have is before 7.47.0-1ubuntu2.14, run the following:

$ sudo apt-get update
$ sudo apt-get install libcurl3-nss

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