CVE-2020-8244
Last modified
CVE-2020-8244 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 2.12% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bufferlist Project | Bufferlist | < 1.2.3 |
| Bufferlist Project | Bufferlist | >= 2.0.0, < 2.2.1 |
| Bufferlist Project | Bufferlist | >= 3.0.0, < 3.0.1 |
| Bufferlist Project | Bufferlist | >= 4.0.0, < 4.0.3 |
| Debian | Debian Linux | 9.0 |
References
- https://hackerone.com/reports/966347Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00028.htmlMailing List, Third Party Advisory
- https://hackerone.com/reports/966347Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00028.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-8244?
How severe is CVE-2020-8244?
How do I fix CVE-2020-8244?
Are you affected by CVE-2020-8244?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST