196826 – Kernel: x86_64 privilege escalation (CVE-2007-4573)

Bug 196826 - Kernel: x86_64 privilege escalation (CVE-2007-4573)

Summary: Kernel: x86_64 privilege escalation (CVE-2007-4573)

Status:	RESOLVED DUPLICATE of bug 193386

Alias:	None

Product:	Gentoo Security
Classification:	Unclassified
Component:	Kernel (show other bugs)
Hardware:	All Linux

Importance:	High normal (vote)
Assignee:	Gentoo Security

URL:	http://cve.mitre.org/cgi-bin/cvename....
Whiteboard:
Keywords:

Depends on:
Blocks:

Reported:	2007-10-23 19:25 UTC by Sune Kloppenborg Jeppesen (RETIRED)
Modified:	2007-10-23 20:18 UTC (History)
CC List:	0 users

See Also:
Package list:
Runtime testing required:	---

Attachments
Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.

Description Sune Kloppenborg Jeppesen (RETIRED) gentoo-dev

2007-10-23 19:25:56 UTC

The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.

Comment 1 Robert Buchholz (RETIRED) gentoo-dev

2007-10-23 20:18:17 UTC


*** This bug has been marked as a duplicate of bug 193386 ***