7.5

CVE-2023-5824: redhat enterprise_linux

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2023-5824DEBIAN-CVE-2023-5824
Published 03-11-2023Last modified 06-11-2025
Open JSON

Vulnerability summary

CVE-2023-5824 is a high (CVSS 7.5) vulnerability in redhat enterprise_linux. EPSS estimates a 5.19% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
5.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 4
DLA-4312-1DSA-5982-1MGASA-2024-0126OPENSUSE-SU-2024:13398-1RHSA-2023:7465RHSA-2023:7668

Timeline

  1. 03-11-2023
    PublishedVulnerability first disclosed.
  2. 06-11-2025
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

5.19%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 5.19% on 18-09-2026

18-09-202618-10-2026
EPSS score
5.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu2 products
  • squid< 4.10-1ubuntu1.12 | < 5.7-0ubuntu0.22.04.4 | < 6.5-1ubuntu1
  • squid3All versions (No fix recorded)
Debian1 product
  • squid< 5.7-2+deb12u3 | < 6.5-1
Redhat1 product
Squid-cache1 product

4 vendors · 5 products

References

22 links
Show all 22 references