CVE-2022-49727
MediumIn 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.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness type
CWE-190CVE-2022-49727 is a Integer Overflow vulnerability
What is Integer Overflow?
The product performs a calculation that can produce an integer overflow, leading to unexpected values. Learn more on MITRE CWE
Affected versions
Linux kernel versions
3.5
and later are affected. Fixed in
4.9.320,
4.14.285,
4.19.249,
5.4.200,
5.10.124,
5.15.49,
5.18.6,
5.19
and their respective stable series.
References
8 total-
Patch
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Frequently asked questions
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What is CVE-2022-49727?
CVE-2022-49727 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Integer Overflow flaw (CWE-190) . It affects Linux kernel versions from 3.5 onward and has been patched in 4.9.320, 4.14.285, 4.19.249 and others. CVE-2022-49727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-49727?
CVE-2022-49727 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-49727?
Yes. CVE-2022-49727 has been patched. Fixed versions include 4.9.320, 4.14.285, 4.19.249 and others. If you are running Linux kernel 3.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-49727 actively exploited?
No. CVE-2022-49727 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.