CVE-2022-49727
Linux Kernel IPv6 L2TP Signed Integer Overflow Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 7, 2025, 8:44 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49727.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49727 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49727 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 07, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-190 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.9.320 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 from (excluding) 4.14.285 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 from (excluding) 4.19.249 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.200 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.49 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.124 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 5.18.6 Added Reference Type kernel.org: https://git.kernel.org/stable/c/034246122f5c5e2e2a0b9fe04e24517920e9beb1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6c4e3486d21173d60925ef52e512cae727b43d30 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f638a84afef3dfe10554c51820c16e39a278c915 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max. Added Reference https://git.kernel.org/stable/c/034246122f5c5e2e2a0b9fe04e24517920e9beb1 Added Reference https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04e Added Reference https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1 Added Reference https://git.kernel.org/stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000 Added Reference https://git.kernel.org/stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053d Added Reference https://git.kernel.org/stable/c/6c4e3486d21173d60925ef52e512cae727b43d30 Added Reference https://git.kernel.org/stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751 Added Reference https://git.kernel.org/stable/c/f638a84afef3dfe10554c51820c16e39a278c915
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49727 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49727
weaknesses.