Squid Denial of Service
Published Oct 28, 2024
7.5
HIGHCVSS 3.1
EPSS 47.88%
Description
Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to Input Validation, Premature Release of Resource During Expected Lifetime, and Missing Release of Resource after Effective Lifetime bugs, Squid is vulnerable to Denial of Service attacks by a trusted server against all clients using the proxy. This bug is fixed in the default build configuration of Squid version 6.10.
Affected products
-
- Version >= 3.0, < 6.10StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Squid-Cache | Squid | n/a |
|
- ≥ 3.0 · < 6.10
-
- Version 3.0StatusaffectedConstraints<6.10
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Squid-Cache | Squid | n/a |
|
Red Hat Enterprise Linux 7 Extended Lifecycle Support
squid-7:3.5.20-17.el7_9.11
Fixed · RHSA-2024:9738
Red Hat Enterprise Linux 8
squid:4-8100020241113143337.489197e6
Fixed · RHSA-2024:9644
Red Hat Enterprise Linux 8.2 Advanced Update Support
squid:4-8020020241112142652.4cda2c84
Fixed · RHSA-2024:9624
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
squid:4-8040020241112182856.522a0ee4
Fixed · RHSA-2024:9815
Red Hat Enterprise Linux 8.4 Telecommunications Update Service
squid:4-8040020241112182856.522a0ee4
Fixed · RHSA-2024:9815
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
squid:4-8040020241112182856.522a0ee4
Fixed · RHSA-2024:9815
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
squid:4-8060020241113144818.ad008a3a
Fixed · RHSA-2024:9814
Red Hat Enterprise Linux 8.6 Telecommunications Update Service
squid:4-8060020241113144818.ad008a3a
Fixed · RHSA-2024:9814
Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
squid:4-8060020241113144818.ad008a3a
Fixed · RHSA-2024:9814
Red Hat Enterprise Linux 8.8 Extended Update Support
squid:4-8080020241113192235.63b34585
Fixed · RHSA-2024:9813
Red Hat Enterprise Linux 9
squid-7:5.5-14.el9_5.3
Fixed · RHSA-2024:9625
Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
squid-7:5.2-1.el9_0.7
Fixed · RHSA-2024:9729
Red Hat Enterprise Linux 9.2 Extended Update Support
squid-7:5.5-5.el9_2.8
Fixed · RHSA-2024:9677
Red Hat Enterprise Linux 9.4 Extended Update Support
squid-7:5.5-13.el9_4.2
Fixed · RHSA-2024:9678
Red Hat Enterprise Linux 10
squid
Not affected
Red Hat Enterprise Linux 6
squid
Out of support scope
Red Hat Enterprise Linux 6
squid34
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | squid-7:3.5.20-17.el7_9.11 | Fixed | RHSA-2024:9738 |
| Red Hat Enterprise Linux 8 | squid:4-8100020241113143337.489197e6 | Fixed | RHSA-2024:9644 |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | squid:4-8020020241112142652.4cda2c84 | Fixed | RHSA-2024:9624 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | squid:4-8040020241112182856.522a0ee4 | Fixed | RHSA-2024:9815 |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service | squid:4-8040020241112182856.522a0ee4 | Fixed | RHSA-2024:9815 |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | squid:4-8040020241112182856.522a0ee4 | Fixed | RHSA-2024:9815 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | squid:4-8060020241113144818.ad008a3a | Fixed | RHSA-2024:9814 |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | squid:4-8060020241113144818.ad008a3a | Fixed | RHSA-2024:9814 |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | squid:4-8060020241113144818.ad008a3a | Fixed | RHSA-2024:9814 |
| Red Hat Enterprise Linux 8.8 Extended Update Support | squid:4-8080020241113192235.63b34585 | Fixed | RHSA-2024:9813 |
| Red Hat Enterprise Linux 9 | squid-7:5.5-14.el9_5.3 | Fixed | RHSA-2024:9625 |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | squid-7:5.2-1.el9_0.7 | Fixed | RHSA-2024:9729 |
| Red Hat Enterprise Linux 9.2 Extended Update Support | squid-7:5.5-5.el9_2.8 | Fixed | RHSA-2024:9677 |
| Red Hat Enterprise Linux 9.4 Extended Update Support | squid-7:5.5-13.el9_4.2 | Fixed | RHSA-2024:9678 |
| Red Hat Enterprise Linux 10 | squid | Not affected | n/a |
| Red Hat Enterprise Linux 6 | squid | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | squid34 | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
All builds of Squid shipped in supported versions of Red Hat Enterprise Linux are built with the vulnerable (ESI) feature enabled.
Red Hat mitigation
This bug was mitigated by the default upstream build configuration of Squid since version 6.10.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Oct 28, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2024–2026- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 47.88% (0.47879) | 98.82th | v5 (v2026.06.15) |
| Jul 15, 2026 | 47.23% (0.47227) | 98.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 45.29% (0.45289) | 98.63th | v5 (v2026.06.15) |
| Dec 6, 2025 | 0.96% (0.00959) | 75.75th | v4 (v2025.03.14) |
| Nov 24, 2025 | 2.07% (0.02072) | 83.39th | v4 (v2025.03.14) |
| Mar 30, 2025 | 0.45% (0.00451) | 60.81th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.96% (0.01964) | 72.63th | v4 (v2025.03.14) |
| Mar 28, 2025 | 0.45% (0.00451) | 60.86th | v4 (v2025.03.14) |
| Mar 27, 2025 | 1.96% (0.01964) | 81.38th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.28% (0.00278) | 49.17th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.12% (0.00117) | 47.30th | v3 (v2023.03.01) |
| Oct 29, 2024 | 0.04% (0.00043) | 9.88th | v3 (v2023.03.01) |
References (7)
- https://access.redhat.com/security/cve/CVE-2024-45802 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2322154 Issue Tracking
- https://github.com/squid-cache/squid/security/advisories/GHSA-f975-v7qw-q7hj x_refsource_CONFIRMMitigationThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-45802
- https://security.netapp.com/advisory/ntap-20250103-0004/
- https://www.cve.org/CVERecord?id=CVE-2024-45802
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2024-45802 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2322154 | Issue Tracking | |
| https://github.com/squid-cache/squid/security/advisories/GHSA-f975-v7qw-q7hj | x_refsource_CONFIRMMitigationThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2025/03/msg00009.html | ||
| https://nvd.nist.gov/vuln/detail/CVE-2024-45802 | ||
| https://security.netapp.com/advisory/ntap-20250103-0004/ | ||
| https://www.cve.org/CVERecord?id=CVE-2024-45802 |
Change history (0)
No recorded changes yet.