7.5

CVE-2020-11653: debian debian_linux Reachable Assertion

CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-11653USN-5474-2DEBIAN-CVE-2020-11653
Published 08-04-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-11653 is a high (CVSS 7.5) Reachable Assertion vulnerability in debian debian_linux. EPSS estimates a 2.16% chance of exploitation in the next 30 days, higher than 81.9% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.16%
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 5 · Related 3
DLA-3208-1OPENSUSE-SU-2020:0808-1OPENSUSE-SU-2020:0819-1RHSA-2020:4756USN-5474-1

Timeline

  1. 08-04-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Varnish Cache before 6.0.6 LTS, 6.1.x and 6.2.x before 6.2.3, and 6.3.x before 6.3.2. It occurs when communication with a TLS termination proxy uses PROXY version 2. There can be an assertion failure and daemon restart, which causes a performance loss.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.16%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.16% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.16%

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

Debian2 products
Opensuse2 products
Ubuntu1 product
  • varnish< 6.2.1-2ubuntu0.1 | < 6.2.1-2ubuntu0.2
Varnish-cache1 product
Varnish-software1 product

5 vendors · 7 products

References

10 links