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Mend.io Vulnerability Database

CVE-2022-4129

Date: November 27, 2022

A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

Language: C

Severity Score

5.5

Related Resources (15)

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7X5SPXMXXFANDASPCKER2JIQO2F3UHCP/

Url: https://access.redhat.com/security/cve/CVE-2022-4129

Url: https://security-tracker.debian.org/tracker/CVE-2022-4129

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7X5SPXMXXFANDASPCKER2JIQO2F3UHCP/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JOKXNIM2R4FQCDRQV67UMAY6EBC72QFG/

Url: https://lore.kernel.org/all/20221114191619.124659-1-jakub%40cloudflare.com/t

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JOKXNIM2R4FQCDRQV67UMAY6EBC72QFG/

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-4129

Url: https://lore.kernel.org/netdev/20221121085426.21315-1-jakub@cloudflare.com/t

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AM5KFIE6JNZXHBA5A2KYDZAT3MEX2B67/

Url: https://lore.kernel.org/all/20221114191619.124659-1-jakub@cloudflare.com/t

Url: https://lore.kernel.org/netdev/20221121085426.21315-1-jakub%40cloudflare.com/t

Url: https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AM5KFIE6JNZXHBA5A2KYDZAT3MEX2B67/

Url: https://www.mend.io/vulnerability-database/CVE-2022-4129

Severity Score

5.5

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Improper Locking

CWE-667

CVSS v3.1

Base Score:	5.5
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	HIGH

Mend.io Vulnerability Database

We found results for “”

CVE-2022-4129

Date: November 27, 2022

Language: C

Severity Score

Related Resources (15)

Severity Score

Weakness Type (CWE)

CVSS v3.1

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