==========================================================================
Ubuntu Security Notice USN-4501-1
September 15, 2020
luajit vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 16.04 LTS
Summary:
LuaJIT could be made crash or expose sensitive information if it received
specially crafted input.
Software Description:
– luajit: Just in time compiler for Lua programming language version 5.1
Details:
It was discovered that an out-of-bounds read existed in LuaJIT. An
attacker could use this to cause a denial of service (application crash)
or possibly expose sensitive information. (CVE-2020-15890)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 LTS:
libluajit-5.1-2 2.0.4+dfsg-1+deb9u1build0.16.04.1
libluajit-5.1-common 2.0.4+dfsg-1+deb9u1build0.16.04.1
libluajit-5.1-dev 2.0.4+dfsg-1+deb9u1build0.16.04.1
luajit 2.0.4+dfsg-1+deb9u1build0.16.04.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4501-1
CVE-2020-15890
Package Information:
https://launchpad.net/ubuntu/+source/luajit/2.0.4+dfsg-1+deb9u1build0.16.04.1
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