CVE-2023-5824
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Squid
PublishedNov 3, 2023
First seenNov 3, 2023
Weakness typeCWE-755CWE-755
How to fix
Update
- squid-cache squid6.4 or later
Vendor advisories
- github.com/squid-cache/squid/security/advisories/GHSA-543m-w2m2-g255
- access.redhat.com/errata/RHSA-2023:7465
- access.redhat.com/errata/RHSA-2023:7668
- access.redhat.com/errata/RHSA-2024:0072
- access.redhat.com/errata/RHSA-2024:0397
- access.redhat.com/errata/RHSA-2024:0771
- access.redhat.com/errata/RHSA-2024:0772
- access.redhat.com/errata/RHSA-2024:0773
- access.redhat.com/errata/RHSA-2024:1153
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| squid-cache squid | v < 6.4 | 6.4 |
| redhat enterprise_linux | 6.0, 7.0, 8.0, 9.0 | — |
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