CVE-2020-8244GHSA-PP7H-53GX-MX7R
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 ty
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.2.3, 2.2.1, 3.0.1, 4.0.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a bl
Version range not reported
- blnpm
fixed in 1.2.3
- blnpm
From 2.0.0 · fixed in 2.2.1
- blnpm
From 3.0.0 · fixed in 3.0.1
- blnpm
From 4.0.0 · fixed in 4.0.3