CVE-2020-8244
Published: 30 August 2020
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.
Priority
Status
Package | Release | Status |
---|---|---|
node-bl Launchpad, Ubuntu, Debian |
impish |
Not vulnerable
(4.0.3-1)
|
bionic |
Released
(1.1.2-1ubuntu1.1)
|
|
focal |
Needs triage
|
|
groovy |
Not vulnerable
(4.0.3-1)
|
|
trusty |
Does not exist
|
|
upstream |
Needs triage
|
|
hirsute |
Not vulnerable
(4.0.3-1)
|
|
xenial |
Released
(0.9.3-1ubuntu0.1~esm1)
Available with Ubuntu Pro |
|
jammy |
Not vulnerable
(4.0.3-1)
|
|
lunar |
Not vulnerable
(4.0.3-1)
|
|
kinetic |
Not vulnerable
(4.0.3-1)
|
|
mantic |
Not vulnerable
(4.0.3-1)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | Low |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8244
- https://hackerone.com/reports/966347
- https://github.com/rvagg/bl/commit/d3e240e3b8ba4048d3c76ef5fb9dd1f8872d3190
- https://ubuntu.com/security/notices/USN-5098-1
- https://ubuntu.com/security/notices/USN-5159-1
- NVD
- Launchpad
- Debian