High severity · published Nov 3, 2023
CVE-2023-5824
A flaw was found in Squid
7.5
CVSS
3%
EPSS
No
On KEV
Description
A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0; 9.0 · source: NVD
SQ
Squid · Squid-cache
before 6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-5824
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-5824
access.redhat.com
https://access.redhat.com/errata/RHSA-2023:7465
access.redhat.com
https://access.redhat.com/errata/RHSA-2023:7668
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0072
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0397
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0771
access.redhat.com
https://access.redhat.com/errata/RHSA-2024:0772
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