// For flags

CVE-2022-48560

python: use after free in heappushpop() of heapq module

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A use-after-free exists in Python through 3.9 via heappushpop in heapq.

A use-after-free vulnerability was found in Python via the heappushpop function in the heapq module. This flaw allows an attacker to submit a specially crafted request, causing a service disruption that leads to a denial of service attack.

It was discovered that Python incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 18.04 LTS. It was discovered that Python incorrectly used regular expressions vulnerable to catastrophic backtracking. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-07-23 CVE Reserved
  • 2023-08-22 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-416: Use After Free
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Python
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 Python
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 < 3.6.11
Search vendor "Python" for product "Python" and version " < 3.6.11"
-
Affected
Python
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 Python
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 >= 3.7.0 < 3.7.7
Search vendor "Python" for product "Python" and version " >= 3.7.0 < 3.7.7"
-
Affected
Python
Search vendor "Python"
 Python
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 >= 3.8.0 < 3.8.2
Search vendor "Python" for product "Python" and version " >= 3.8.0 < 3.8.2"
-
Affected
Python
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 Python
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 3.9.0
Search vendor "Python" for product "Python" and version "3.9.0"
alpha1
Affected
Python
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 Python
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 3.9.0
Search vendor "Python" for product "Python" and version "3.9.0"
alpha2
Affected
Debian
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 Debian Linux
Search vendor "Debian" for product "Debian Linux"
 10.0
Search vendor "Debian" for product "Debian Linux" and version "10.0"
-
Affected