CVE-2020-8244
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,…
Does this matter?
Lower severity and a low EPSS score (2.18%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
- EPSS
- 2.18% probability · 81th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-126, CWE-125
- Affected
- bufferlist project/bufferlist · debian/debian linux
- Source
- support@hackerone.com
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.