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Ubuntu Security Notice USN-4501-1

Ubuntu Security Notice USN-4501-1
Posted Sep 16, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4501-1 - It was discovered that an out-of-bounds read existed in LuaJIT. An attacker could use this to cause a denial of service or possibly expose sensitive information.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2020-15890
MD5 | 5d05a6843c1b85d15a31054694f8bdaf

Ubuntu Security Notice USN-4501-1

Change Mirror Download
==========================================================================
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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