CVE-2010-3301
HIGH severity · CVSS 7.2 · Improper privilege management
7.2CVSS HIGH
Summary
The IA32 system call emulation functionality in arch/x86/ia32/ia32entry.S in the Linux kernel before 2.6.36-rc4-git2 on the x86_64 platform does not zero extend the %eax register after the 32-bit entry path to ptrace is used, which allows local users to gain privileges by triggering an out-of-bounds access to the system call table using the %rax register. NOTE: this vulnerability exists because of a CVE-2007-4573 regression.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)4%
AV:L/AC:L/Au:N/C:C/I:C/A:C
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=36d001c70d8a0144ac1d038f6876c484849a74de
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=eefdca043e8391dcd719711716492063030b55ac
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.htmlAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlAdvisory
- http://secunia.com/advisories/42758Advisory
- http://sota.gen.nz/compat2/Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.36-rc4-git2.log
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198Advisory