The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Squid Cache: out-of-bounds memory reading via WCCP Protocol Data

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via WCCP Protocol Data of Squid Cache, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Fedora, Squid.
Severity of this threat: 2/4.
Creation date: 10/03/2021.
Références of this weakness: 5131, CVE-2021-28116, FEDORA-2021-c0bec55ec7, VIGILANCE-VUL-34802, ZDI-21-157.

Description of the vulnerability 

An attacker can force a read at an invalid address via WCCP Protocol Data of Squid Cache, in order to trigger a denial of service, or to obtain sensitive information.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This threat alert impacts software or systems such as Fedora, Squid.

Our Vigil@nce team determined that the severity of this computer vulnerability bulletin is medium.

The trust level is of type confirmed by the editor, with an origin of intranet client.

An attacker with a expert ability can exploit this weakness note.

Solutions for this threat 

Fedora 34: new squid packages.
New packages are available:
  Fedora 34: squid 5.0.6-1.fc34
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides network vulnerability alerts. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.