Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2021-33644: out-of-bounds read in gnu_longname (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Red Hat: CVE-2021-33644: out-of-bounds read in gnu_longname (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/10/2022
Created
05/17/2023
Added
05/17/2023
Modified
12/15/2023

Description

An attacker who submits a crafted tar file with size in header struct being 0 may be able to trigger an calling of malloc(0) for a variable gnu_longname, causing an out-of-bounds read.

Solution(s)

  • redhat-upgrade-libtar
  • redhat-upgrade-libtar-debuginfo
  • redhat-upgrade-libtar-debugsource

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;