Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.4.35 |
Related Weaknesses (CWE)
References
- http://fedoranews.org/updates/FEDORA-2007-229.shtml
- http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3
- http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html
- http://lkml.org/lkml/2007/9/21/512Patch
- http://lkml.org/lkml/2007/9/21/513
- http://marc.info/?l=full-disclosure&m=119062587407908&w=2
- http://secunia.com/advisories/26917
- http://secunia.com/advisories/26919
- http://secunia.com/advisories/26934
- http://secunia.com/advisories/26953
- http://secunia.com/advisories/26955
- http://secunia.com/advisories/26978
- http://secunia.com/advisories/26994
- http://secunia.com/advisories/26995
- http://secunia.com/advisories/27212
FAQ
What is CVE-2007-4573?
CVE-2007-4573 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 ...
How severe is CVE-2007-4573?
CVE-2007-4573 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2007-4573?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.