Home/CVE/A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach
CVE

CVE-2022-41858

A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach

A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.

HIGH · CVSS 7.1 EPSS 0.00015
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-416Use After Free
CWE-476NULL Pointer Dereference
▤

Affected Products & Versions

8
linux kernel< 4.9.311
linux kernel>= 4.10 and < 4.14.276
linux kernel>= 4.15 and < 4.19.239
linux kernel>= 4.20 and < 5.4.190
linux kernel>= 5.5.0 and < 5.10.112
linux kernel>= 5.11 and < 5.15.35
linux kernel>= 5.16 and < 5.17.4
netapp hci baseboard management controllerall versions
▣

Scoring & Timeline

7.1
HIGH · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD17 Jan 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

30
rhsaRHSA-2024:0448Low
rhsaRHSA-2024:0439Low
siemens-csafSSA-202008
rhsaRHSA-2024:1404Moderate
rhsaRHSA-2024:0412Moderate
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/torvalds/linux/commit/ec4eb8a86ade4d22633e1da2a7d85a846b7d1798PatchThird Party Advisory
https://security.netapp.com/advisory/ntap-20230223-0006/Third Party Advisory
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