#VU90883 Use of uninitialized resource in Linux kernel - CVE-2023-52577

Vulnerability identifier: #VU90883

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-52577

CWE-ID: CWE-908

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to use of uninitialized resource within the dccp_v6_err() function in net/dccp/ipv6.c, within the dccp_v4_err() function in net/dccp/ipv4.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/4600beae416d754a3cedbb1ecea8181ec05073b6
https://git.kernel.org/stable/c/62c218124fe58372e0e1f60d5b634d21c264b337
https://git.kernel.org/stable/c/a6f4d582e25d512c9b492670b6608436694357b3
https://git.kernel.org/stable/c/60d73c62e3e4464f375758b6f2459c13d46465b6
https://git.kernel.org/stable/c/26df9ab5de308caa1503d937533c56c35793018d
https://git.kernel.org/stable/c/73be49248a04746096339a48a33fa2f03bd85969
https://git.kernel.org/stable/c/1512d8f45d3c5d0b5baa00bd8e600492fa569f40
https://git.kernel.org/stable/c/6af289746a636f71f4c0535a9801774118486c7a

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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