// For flags

CVE-2024-53206

tcp: Fix use-after-free of nreq in reqsk_timer_handler().

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Linux kernel, the following vulnerability has been resolved:

tcp: Fix use-after-free of nreq in reqsk_timer_handler().

The cited commit replaced inet_csk_reqsk_queue_drop_and_put() with
__inet_csk_reqsk_queue_drop() and reqsk_put() in reqsk_timer_handler().

Then, oreq should be passed to reqsk_put() instead of req; otherwise
use-after-free of nreq could happen when reqsk is migrated but the
retry attempt failed (e.g. due to timeout).

Let's pass oreq to reqsk_put().

*Credits: N/A
CVSS Scores
Attack Vector
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Attack Complexity
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Privileges Required
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User Interaction
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Scope
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Confidentiality
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Integrity
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Availability
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* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
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Automatable
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Tech. Impact
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* Organization's Worst-case Scenario
Timeline
  • 2024-11-19 CVE Reserved
  • 2024-12-27 CVE Published
  • 2024-12-27 CVE Updated
  • 2024-12-28 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.15.170 < 5.15.174
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.15.170 < 5.15.174"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.1.115 < 6.1.120
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.1.115 < 6.1.120"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.6.59 < 6.6.64
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.6.59 < 6.6.64"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.11.6 < 6.11.11
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.11.6 < 6.11.11"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.12 < 6.12.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.12 < 6.12.2"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 6.12 < 6.13-rc1
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.12 < 6.13-rc1"
en
Affected