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CVE-2021-3520

Description

There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well. #### Bugs * <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987856>


Affected Package


OS OS Version Package Name Package Version
ubuntu 20.04 lz4 1.9.2-2ubuntu0.20.04.1
ubuntu 20.10 lz4 1.9.2-2ubuntu0.20.10.1
ubuntu 21.04 lz4 1.9.3-1ubuntu0.1
ubuntu 14.04 lz4 0.0~r114-2ubuntu1+esm2
ubuntu upstream lz4 1.9.3-2
ubuntu 16.04 lz4 0.0~r131-2ubuntu2+esm1

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