CVE-2006-5174

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2006-10-10 · updated 2026-06-16

Description

The copy_from_user function in the uaccess code in Linux kernel 2.6 before 2.6.19-rc1, when running on s390, does not properly clear a kernel buffer, which allows local user space programs to read portions of kernel memory by "appending to a file from a bad address," which triggers a fault that prevents the unused memory from being cleared in the kernel buffer.

Affected products

Linux kernel: 2.6.0, 2.6.0-test1, 2.6.0-test10, 2.6.0-test11, 2.6.0-test2, 2.6.0-test3 (+179)

References

http://lkml.org/lkml/2006/11/5/46
http://rhn.redhat.com/errata/RHSA-2007-0014.html
http://secunia.com/advisories/22289
http://secunia.com/advisories/22497
http://secunia.com/advisories/23064
http://secunia.com/advisories/23370
http://secunia.com/advisories/23395
http://secunia.com/advisories/23474
http://secunia.com/advisories/23997
http://secunia.com/advisories/24206
http://securitytracker.com/id?1017090
http://support.avaya.com/elmodocs2/security/ASA-2006-254.htm

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