#VU95218 Information exposure in Linux kernel - CVE-2007-3850

Vulnerability identifier: #VU95218

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2007-3850

CWE-ID: CWE-200

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 gain access to sensitive information.

The eHCA driver in Linux kernel 2.6 before 2.6.22, when running on PowerPC, does not properly map userspace resources, which allows local users to read portions of physical address space.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://rhn.redhat.com/errata/RHSA-2007-0940.html
https://www.securityfocus.com/bid/26161
https://secunia.com/advisories/27322
https://osvdb.org/45488
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10793
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=721151d004dcf01a71b12bb6b893f9160284cf6e

---

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.