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AUSCERT External Security Bulletin Redistribution
ESB-2019.1837
USN-3993-1/USN-3993-2: curl vulnerabilities
23 May 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: curl
Publisher: Ubuntu
Operating System: Ubuntu
UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-5436 CVE-2019-5435
Original Bulletin:
https://usn.ubuntu.com/3993-1/
Comment: This bulletin contains two (2) Ubuntu security advisories.
This advisory references vulnerabilities in products which run on
platforms other than Ubuntu. It is recommended that administrators
running curl check for an updated version of the software for their
operating system.
- --------------------------BEGIN INCLUDED TEXT--------------------
USN-3993-1: curl vulnerabilities
22 May 2019
curl vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.04
o Ubuntu 18.10
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Several security issues were fixed in curl.
Software Description
o curl - HTTP, HTTPS, and FTP client and client libraries
Details
Wenchao Li discovered that curl incorrectly handled memory in the curl_url_set
() function. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 19.04. (CVE-2019-5435)
It was discovered that curl incorrectly handled memory when receiving data from
a TFTP server. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2019-5436)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 19.04
curl - 7.64.0-2ubuntu1.1
libcurl3-gnutls - 7.64.0-2ubuntu1.1
libcurl3-nss - 7.64.0-2ubuntu1.1
libcurl4 - 7.64.0-2ubuntu1.1
Ubuntu 18.10
curl - 7.61.0-1ubuntu2.4
libcurl3-gnutls - 7.61.0-1ubuntu2.4
libcurl3-nss - 7.61.0-1ubuntu2.4
libcurl4 - 7.61.0-1ubuntu2.4
Ubuntu 18.04 LTS
curl - 7.58.0-2ubuntu3.7
libcurl3-gnutls - 7.58.0-2ubuntu3.7
libcurl3-nss - 7.58.0-2ubuntu3.7
libcurl4 - 7.58.0-2ubuntu3.7
Ubuntu 16.04 LTS
curl - 7.47.0-1ubuntu2.13
libcurl3 - 7.47.0-1ubuntu2.13
libcurl3-gnutls - 7.47.0-1ubuntu2.13
libcurl3-nss - 7.47.0-1ubuntu2.13
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-5435
o CVE-2019-5436
- --------------------------------------------------------------------------------
USN-3993-2: curl vulnerability
22 May 2019
curl vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 14.04 ESM
o Ubuntu 12.04 ESM
Summary
curl could be made to crash if it received a specially crafted data.
Software Description
o curl - HTTP, HTTPS, and FTP client and client libraries
Details
USN-3993-1 fixed a vulnerability in curl. This update provides the
corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that curl incorrectly handled memory when receiving data from
a TFTP server. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2019-5436)
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+esm2
libcurl3 - 7.35.0-1ubuntu2.20+esm2
libcurl3-gnutls - 7.35.0-1ubuntu2.20+esm2
libcurl3-nss - 7.35.0-1ubuntu2.20+esm2
Ubuntu 12.04 ESM
curl - 7.22.0-3ubuntu4.26
libcurl3 - 7.22.0-3ubuntu4.26
libcurl3-gnutls - 7.22.0-3ubuntu4.26
libcurl3-nss - 7.22.0-3ubuntu4.26
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o USN-3993-1
o CVE-2019-5436
- --------------------------END INCLUDED TEXT--------------------
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