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.

The remote Ubuntu 16.04 ESM host has a package installed that is affected by a vulnerability as referenced in the USN-5159-1 advisory.

    It was discovered that bl incorrectly handled certain inputs. An attacker could possibly use this issue to     cause a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 18.04 LTS host has a package installed that is affected by a vulnerability as referenced in the USN-5098-1 advisory.

    It was discovered that bl didn't properly sanitize the inputs. An attacker could use this to leak     sensitive information.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2698 advisory.

  - 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. (CVE-2020-8244)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
183710	Ubuntu 16.04 ESM : bl vulnerability (USN-5159-1)	Nessus	Ubuntu Local Security Checks	medium
153856	Ubuntu 18.04 LTS : bl vulnerability (USN-5098-1)	Nessus	Ubuntu Local Security Checks	medium
151264	Debian DLA-2698-1 : node-bl - LTS security update	Nessus	Debian Local Security Checks	medium

Detections

Analytics

CVE-2020-8244

medium

Tenable Plugins

medium

medium

medium