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Ubuntu 16.04 LTS: USN-4501-1 Critical Issue with LuaJIT DoS Threat

ubuntu
Calendar Grey September 15, 2020
Dist Ubuntu Esm H88
Explore the security flaw in LuaJIT that impacts Ubuntu 16.04 LTS and discover effective strategies to reduce potential threats.
LuaJIT could be made crash or expose sensitive information if it received specially crafted input.

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)

Topics%20covered

Topics Covered

security advisory DoS Ubuntu application crash sensitive information luajit

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://ubuntu.com/security/notices/USN-4501-1

CVE-2020-15890

Severity
critical
Lowest
Low
Medium
High
Critical

September 15, 2020

Topics%20covered

Topics Covered

security advisory DoS Ubuntu application crash sensitive information luajit

Package Information

https://launchpad.net/ubuntu/+source/luajit/2.0.4+dfsg-1+deb9u1build0.16.04.1

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