| Vulnerability Name: | CVE-2022-4129 (CCN-241397) | ||||||||||||||||
| Assigned: | 2022-10-13 | ||||||||||||||||
| Published: | 2022-10-13 | ||||||||||||||||
| Updated: | 2023-05-03 | ||||||||||||||||
| Summary: | Linux Kernel is vulnerable to a denial of service, caused by a race condition and NULL pointer dereference flaw due to missing lock when clearing sk_user_data in the Layer 2 Tunneling Protocol (L2TP). By sending a specially-crafted request, a local authenticated attacker could exploit this vulnerability to cause the system to crash. | ||||||||||||||||
| CVSS v3 Severity: | 5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H) 4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:C)
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| Vulnerability Consequences: | Denial of Service | ||||||||||||||||
| References: | Source: MITRE Type: CNA CVE-2022-4129 Source: CCN Type: Red Hat Bugzilla - Bug 2134528 CVE-2022-4129 kernel: l2tp: missing lock when clearing sk_user_data can lead to NULL pointer dereference Source: XF Type: UNKNOWN linux-kernel-cve20224129-dos(241397) Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com Source: CCN Type: Linux Kernel Web site [PATCH net v4] l2tp: Serialize access to sk_user_data with sk_callback_lock Source: secalert@redhat.com Type: UNKNOWN secalert@redhat.com | ||||||||||||||||
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