Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bufferlist Project | Bufferlist | < 1.2.3 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://hackerone.com/reports/966347ExploitPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00028.htmlMailing ListThird Party Advisory
- https://hackerone.com/reports/966347ExploitPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00028.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-8244?
CVE-2020-8244 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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...
How severe is CVE-2020-8244?
CVE-2020-8244 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-8244?
Check the references section above for vendor advisories and patch information. Affected products include: Bufferlist Project Bufferlist, Debian Debian Linux.