Description
Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.
References (6)
Scores
CVSS v3
8.6
EPSS
0.0313
EPSS Percentile
86.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-674
Status
published
Products (4)
fedoraproject/fedora
38
fedoraproject/fedora
39
netapp/bluexp
squid-cache/squid
3.5.27 - 6.8
Published
Mar 06, 2024
Tracked Since
Feb 18, 2026