CVE-2022-49269
CVE-2022-49269 is a medium-severity vulnerability in Linux Linux Kernel with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- EPSS exploit prediction: 0% (16th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2022-54957
- Affected product: Linux Linux Kernel
- Published:
- Last modified:
Description
In the Linux kernel, the following vulnerability has been resolved: can: isotp: sanitize CAN ID checks in isotp_bind() Syzbot created an environment that lead to a state machine status that can not be reached with a compliant CAN ID address configuration. The provided address information consisted of CAN ID 0x6000001 and 0xC28001 which both boil down to 11 bit CAN IDs 0x001 in sending and receiving. Sanitize the SFF/EFF CAN ID values before performing the address checks.
Frequently asked questions
- What is CVE-2022-49269?
- In the Linux kernel, the following vulnerability has been resolved: can: isotp: sanitize CAN ID checks in isotp_bind() Syzbot created an environment that lead to a state machine status that can not be reached with a compliant CAN ID address configuration. The provided address information consisted of CAN ID 0x6000001 and 0xC28001 which both boil down to 11 bit CAN IDs 0x001 in sending and receiving. Sanitize the SFF/EFF CAN ID values before performing the address checks.
- How severe is CVE-2022-49269?
- CVE-2022-49269 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2022-49269 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-49269?
- CVE-2022-49269 affects Linux Linux Kernel. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-49269?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2022-49269 have an EU (EUVD) identifier?
- Yes. CVE-2022-49269 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-54957.
- When was CVE-2022-49269 published?
- CVE-2022-49269 was published on 2025-02-26 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/3ea566422cbde9610c2734980d1286ab681bb40e
- https://git.kernel.org/stable/c/7b4652fc71dcec043977a6def80ef5034c913615
- https://git.kernel.org/stable/c/cf522d741f5301223cc94b978eb1603c7590d65e
- https://git.kernel.org/stable/c/d72866a7f5326160d2a9d945a33eb6ef1883e25d
- https://git.kernel.org/stable/c/f343dbe82314ab457153c9afd970be4e9e553020
Affected products (1)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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