7.5

CVE-2024-27354: debian debian_linux Uncontrolled Resource Consumption

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2024-27354DEBIAN-CVE-2024-27354
Published 01-03-2024Last modified 22-04-2025
Open JSON

Vulnerability summary

CVE-2024-27354 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in debian debian_linux. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 48% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.60%
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 2
DLA-3749-1DLA-3750-1USN-7404-1USN-8769-1

Timeline

  1. 01-03-2024
    PublishedVulnerability first disclosed.
  2. 22-04-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

48%

Versus all other CVEs

30-day change

0.00 pp

From 0.60% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.60%

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

Debian4 products
  • php-phpseclib< 2.0.42-1+deb12u2 | < 2.0.47-1
  • php-phpseclib3< 3.0.19-1+deb12u3 | < 3.0.36-1
  • phpseclib< 1.0.20-1+deb12u2 | < 1.0.23-1
  • debian_linuxEOL10.0
Ubuntu3 products
  • php-phpseclib< 2.0.1-1ubuntu0.1~esm2 | < 2.0.9-1ubuntu0.1~esm2 | < 2.0.23-2ubuntu0.1~esm2 | < 2.0.36-1ubuntu0.1~esm2
  • php-phpseclib3< 3.0.13-1ubuntu0.1~esm1
  • phpseclib< 1.0.1-3ubuntu0.1+esm1 | < 1.0.9-1ubuntu0.1~esm1 | < 1.0.18-2ubuntu0.1~esm1 | < 1.0.20-1+deb12u3build0.22.04.1 | < 1.0.20-1ubuntu0.1~esm1
Phpseclib1 product
  • phpseclib≥ 1.0.0, < 1.0.23 | ≥ 2.0.0, < 2.0.47 | ≥ 3.0.0, < 3.0.36

3 vendors · 8 products

References

10 links