#VU92500 Integer overflow in Linux kernel - CVE-2015-4001

Vulnerability identifier: #VU92500

Vulnerability risk: Low

CVSSv4.0: 6.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-4001

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The vulnerability exists due to integer overflow error within the oz_hcd_pd_reset() and oz_hcd_get_desc_cnf() functions in drivers/staging/ozwpan/ozhcd.c. A remote non-authenticated attacker can read and manipulate data.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b1bb5b49373b61bf9d2c73a4d30058ba6f069e4c
https://lists.opensuse.org/opensuse-security-announce/2015-08/msg00011.html
https://openwall.com/lists/oss-security/2015/06/05/7
https://www.securityfocus.com/bid/74672
https://www.ubuntu.com/usn/USN-2665-1
https://www.ubuntu.com/usn/USN-2667-1
https://github.com/torvalds/linux/commit/b1bb5b49373b61bf9d2c73a4d30058ba6f069e4c

---

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.