// For flags

CVE-2024-36903

ipv6: Fix potential uninit-value access in __ip6_make_skb()

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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

ipv6: Fix potential uninit-value access in __ip6_make_skb()

As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.

En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ipv6: corrige el posible acceso a valores uninit en __ip6_make_skb() Como se hizo en el commit fc1092f51567 ("ipv4: corrige el acceso a valores uninit en __ip_make_skb()") para IPv4, verifique FLOWI_FLAG_KNOWN_NH en fl6->flowi6_flags en lugar de probar HDRINCL en el socket para evitar una condición de ejecución que provoque acceso a valores uninit.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-05-30 CVE Reserved
  • 2024-05-30 CVE Published
  • 2024-05-31 EPSS Updated
  • 2024-12-19 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
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Linux Kernel
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>= 6.3 < 6.6.31
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.6.31"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 6.3 < 6.8.10
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.8.10"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 6.3 < 6.9
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.3 < 6.9"
en
Affected
Linux
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Linux Kernel
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4.14.313
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en
Affected
Linux
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Linux Kernel
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4.19.281
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en
Affected
Linux
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Linux Kernel
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5.4.241
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en
Affected
Linux
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Linux Kernel
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5.10.178
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en
Affected
Linux
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Linux Kernel
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5.15.107
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en
Affected
Linux
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Linux Kernel
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6.1.24
Search vendor "Linux" for product "Linux Kernel" and version "6.1.24"
en
Affected
Linux
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Linux Kernel
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6.2.11
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en
Affected