// For flags

CVE-2024-12133

Libtasn1: inefficient der decoding in libtasn1 leading to potential remote dos

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A flaw in libtasn1 causes inefficient handling of specific certificate data. When processing a large number of elements in a certificate, libtasn1 takes much longer than expected, which can slow down or even crash the system. This flaw allows an attacker to send a specially crafted certificate, causing a denial of service attack.

USN-7275-1 fixed vulnerabilities in Libtasn1. This update provides the corresponding updates for Ubuntu 24.04 LTS. Bing Shi discovered that Libtasn1 inefficiently handled certificates. An attacker could possibly use this issue to increase resource utilization leading to a denial of service.

*Credits: Red Hat would like to thank Bing Shi for reporting this issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-12-04 CVE Reserved
  • 2025-02-10 CVE Published
  • 2025-02-22 EPSS Updated
  • 2025-03-11 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-407: Inefficient Algorithmic Complexity
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Red Hat
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 Enterprise Linux
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*-
Affected
Redhat
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 Openshift
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*-
Affected
Debian
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 Debian Linux
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*-
Affected
Redhat
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 Enterprise Linux
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*-
Affected
Redhat
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 Openshift
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Affected
Slackware
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 Slackware Linux
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*-
Affected