Ubuntu Security Notice 3611-1 - It was discovered that OpenSSL incorrectly handled certain ASN.1 types. A remote attacker could possibly use this issue to cause a denial of service.
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Ubuntu Security Notice USN-3611-1
March 28, 2018
openssl vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
OpenSSL could be made to crash if it received specially crafted network
traffic.
Software Description:
- openssl: Secure Socket Layer (SSL) cryptographic library and tools
Details:
It was discovered that OpenSSL incorrectly handled certain ASN.1 types. A
remote attacker could possibly use this issue to cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
libssl1.0.0 1.0.2g-1ubuntu13.4
Ubuntu 16.04 LTS:
libssl1.0.0 1.0.2g-1ubuntu4.11
Ubuntu 14.04 LTS:
libssl1.0.0 1.0.1f-1ubuntu2.24
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3611-1
CVE-2018-0739
Package Information:
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu13.4
https://launchpad.net/ubuntu/+source/openssl/1.0.2g-1ubuntu4.11
https://launchpad.net/ubuntu/+source/openssl/1.0.1f-1ubuntu2.24