7.5

CVE-2018-16949: debian debian_linux Uncontrolled Resource Consumption

CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-16949DEBIAN-CVE-2018-16949
Published 12-09-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-16949 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 3.08% chance of exploitation in the next 30 days, higher than 87.4% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
3.08%
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 4 · Related 1
DLA-1513-1DSA-4302-1MGASA-2019-0021OPENSUSE-SU-2024:11113-1

Timeline

  1. 12-09-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in OpenAFS before 1.6.23 and 1.8.x before 1.8.2. Several data types used as RPC input variables were implemented as unbounded array types, limited only by the inherent 32-bit length field to 4 GB. An unauthenticated attacker could send, or claim to send, large input values and consume server resources waiting for those inputs, denying service to other valid connections.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

3.08%

Chance of exploitation in the next 30 days

Percentile

87%

Versus all other CVEs

30-day change

0.00 pp

From 3.08% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.08%

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
Openafs1 product
  • openafs< 1.6.23 | ≥ 1.8.0, < 1.8.2
Ubuntu1 product
  • openafsAll versions (No fix recorded)

3 vendors · 4 products

References

7 links