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CVE-2022-49728

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix signed integer overflow in __ip6_append_data Resurrect ubsan overflow checks and ubsan report this warning, fix it by…

Published Feb 26, 2025CWE-190EPSS 0.29%

Overview

CVE-2022-49728 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix signed integer overflow in __ip6_append_data

Resurrect ubsan overflow checks and ubsan report this warning,

fix it by change the variable [length] type to size_t.

UBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19

2147479552 + 8567 cannot be represented in type 'int'

CPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1

Hardware name: linux,dummy-virt (DT)

Call trace:

dump_backtrace+0x214/0x230

show_stack+0x30/0x78

dump_stack_lvl+0xf8/0x118

dump_stack+0x18/0x30

ubsan_epilogue+0x18/0x60

handle_overflow+0xd0/0xf0

__ubsan_handle_add_overflow+0x34/0x44

__ip6_append_data.isra.48+0x1598/0x1688

ip6_append_data+0x128/0x260

udpv6_sendmsg+0x680/0xdd0

inet6_sendmsg+0x54/0x90

sock_sendmsg+0x70/0x88

____sys_sendmsg+0xe8/0x368

___sys_sendmsg+0x98/0xe0

__sys_sendmmsg+0xf4/0x3b8

__arm64_sys_sendmmsg+0x34/0x48

invoke_syscall+0x64/0x160

el0_svc_common.constprop.4+0x124/0x300

do_

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently asked questions

What is CVE-2022-49728?

CVE-2022-49728 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49728?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49728?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49728?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49728 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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