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CVE-2020-8244

Status Candidate

Overview

A buffer over-read vulnerability exists in bl <4.0.3, <3.0.1, <2.2.1, and <1.2.3 which could allow an attacker to supply user input (even typed) that if it ends up in consume() argument and can become negative, the BufferList state can be corrupted, tricking it into exposing uninitialized memory via regular .slice() calls.

Related Files

Ubuntu Security Notice USN-5098-1
Posted Oct 5, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5098-1 - It was discovered that bl didn't properly sanitize the inputs. An attacker could use this to leak sensitive information.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2020-8244
SHA-256 | e1d064e8643990ae3e68cb3add1b17d3bce59c0ff16f694ffd71dc66a742c4a8
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