7.8

CVE-2006-4924: openbsd openssh Resource Management Errors

Modified
AliasesDEBIAN-CVE-2006-4924
Published 27-09-2006Last modified 07-08-2024
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Vulnerability summary

CVE-2006-4924 is a high (CVSS 7.8) Resource Management Errors vulnerability in openbsd openssh. EPSS estimates a 38.12% chance of exploitation in the next 30 days, higher than 98.5% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (exploit-database, 27-09-2006)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
38.12%
0%100%
High · +0.58 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Advisory lineage

Upstream 0 · Downstream 5
DSA-1189-1DSA-1212DSA-1212-1RHSA-2006:0697RHSA-2006:0698

Timeline

  1. 27-09-2006
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

38.12%

Chance of exploitation in the next 30 days

Percentile

99%

Versus all other CVEs

30-day change

Increase +0.58 pp

From 37.54% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (securityfocus.com)

    Maturity: unknown

  • exploit-databasedosmultipleVerified

    OpenSSH 4.3 p1 - Duplicated Block Remote Denial of Service

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • openssh< 1:4.3p2-4
Openbsd1 product
  • openssh1.2 | 1.2.1 | 1.2.2 | 1.2.3 | 1.2.27 | 2.1 | 2.1.1 | 2.2 | 2.3 | 2.5 | 2.5.1 | 2.5.2 | 2.9 | 2.9.9 | 2.9.9p2 | 2.9p1 | 2.9p2 | 3.0 | 3.0.1 | 3.0.1p1 | 3.0.2 | 3.0.2p1 | 3.0p1 | 3.1 | 3.1p1 | 3.2 | 3.2.2 | 3.2.2p1 | 3.2.3p1 | 3.3 | 3.3p1 | 3.4 | 3.4p1 | 3.5 | 3.5p1 | 3.6 | 3.6.1 | 3.6.1p1 | 3.6.1p2 | 3.7 | 3.7.1 | 3.7.1p1 | 3.7.1p2 | 3.8 | 3.8.1 | 3.8.1p1 | 3.9 | 3.9.1 | 3.9.1p1 | 4.0 | 4.0p1 | 4.1p1 | 4.2 | 4.2p1 | 4.3 | 4.3p1

2 vendors · 2 products

References

77 links
Show all 77 references