CVE-2023-49285CWE-126

Denial of Service in HTTP Message Processing in Squid

High · published December 4, 2023

Patch now

High probability of exploitation

CVSS calls it high at 8.6. It sits in the 99.8th percentile for exploit probability.

CVSS v3.1

8.6

EPSS

88%

Percentile

99.8

In the wild

Unconfirmed

What it is

Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a Buffer Overread bug Squid is vulnerable to a Denial of Service attack against Squid HTTP Message processing. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

The record

Technical detail

CVSS v3.1: 8.6 · HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS v4.0: Not supplied
EPSS: 0.88144 · 99.8th percentile
Weakness: CWE-126 · Buffer Over-read
Published: 2023-12-04T22:56Z

EPSS history

Timeline

04 DEC 22:56Z
Denial of Service in HTTP Message Processing in Squid
cvelistv5