#VU89002 Use-after-free in Linux kernel - CVE-2024-26582

Vulnerability identifier: #VU89002

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26582

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in net/tls/tls_sw.c during partial reads and async decrypt. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: before 6.1.79, 6.1.79

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External links
https://git.kernel.org/stable/c/32b55c5ff9103b8508c1e04bfa5a08c64e7a925f
https://git.kernel.org/stable/c/20b4ed034872b4d024b26e2bc1092c3f80e5db96
https://git.kernel.org/stable/c/d684763534b969cca1022e2a28645c7cc91f7fa5
https://git.kernel.org/stable/c/754c9bab77a1b895b97bd99d754403c505bc79df

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.