CVE-2022-3586
Linux Kernel Net Scheduler Use-After-Free Information Disclosure Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.
Se ha encontrado un fallo en el código de red del kernel de Linux. Ha sido encontrado un uso de memoria previamente liberada en la forma en que la función sch_sfb enqueue usó el campo cb del búfer de socket (SKB) después de que el mismo SKB había sido puesto en cola (y liberado) en un qdisc hijo. Este fallo permite a un usuario local no privilegiado bloquear el sistema, causando una denegación de servicio
This vulnerability allows local attackers to disclose sensitive information on affected installations of the Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the processing of CAKE queueing disciplines. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilties to escalate privileges and execute arbitrary code in the context of the kernel.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2022-10-18 CVE Reserved
- 2022-10-19 CVE Published
- 2024-05-11 EPSS Updated
- 2024-08-03 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (3)
URL | Tag | Source |
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https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html | Mailing List | |
https://www.zerodayinitiative.com/advisories/upcoming | Third Party Advisory |
URL | Date | SRC |
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URL | Date | SRC |
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https://github.com/torvalds/linux/commit/9efd23297cca | 2022-11-04 |
URL | Date | SRC |
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 6.0 Search vendor "Linux" for product "Linux Kernel" and version " < 6.0" | - |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.0 Search vendor "Linux" for product "Linux Kernel" and version "6.0" | rc1 |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.0 Search vendor "Linux" for product "Linux Kernel" and version "6.0" | rc2 |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.0 Search vendor "Linux" for product "Linux Kernel" and version "6.0" | rc3 |
Affected
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Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.0 Search vendor "Linux" for product "Linux Kernel" and version "6.0" | rc4 |
Affected
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Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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