---
cve: "CVE-2020-24606"
severity: "HIGH"
cvss: 7.5
epss: "19.6%"
vendor: "Generic Security"
kev: false
exploited: false
published: "2020-08-24 18:15:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T12:21:21+02:00"
---

# CVE-2020-24606

> 7.5 HIGH

## Beschreibung

Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 3f5d044d9a4873b3c769d13c43d5d3f9bfe258a3 (Commit)
- f4ade365f80fcf9fec62b31f9a4df5e26e42e206 (Commit)

## Referenzen

- <http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00012.html>
- <http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00017.html>
- <http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_9.patch>
- <https://github.com/squid-cache/squid/security/advisories/GHSA-vvj7-xjgq-g2jg>
- <https://lists.debian.org/debian-lts-announce/2020/10/msg00005.html>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BE6FKUN7IGTIR2MEEMWYDT7N5EJJLZI2/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BMTFLVB7GLRF2CKGFPZ4G4R5DIIPHWI3/>
- <https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HJJDI7JQFGQLVNCKMVY64LAFMKERAOK7/>
- <https://security.netapp.com/advisory/ntap-20210219-0007/>
- <https://security.netapp.com/advisory/ntap-20210226-0006/>
- <https://security.netapp.com/advisory/ntap-20210226-0007/>
- <https://usn.ubuntu.com/4477-1/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2020-24606) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_