CVE-2010-3301

high

Published 2010-09-22 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.2

Description

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.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-15023 local linux_x86-64 verified

ben hawkes · 2010-09-16

Linux Kernel < 2.6.36-rc4-git2 (x86-64) - 'ia32syscall' Emulation Privilege Escalation

Source code queued for fetch — refresh in a moment.

OS impact

Linux kernel Affected 2 releases

Version	Status	Fixed in
2.6.36	Affected	—
—	Affected	`2.6.36`

Ubuntu Affected 3 releases

Version	Status	Fixed in
10.10	Affected	—
10.04	Affected	—
9.10	Affected	—

References

CWEs

CWE-269

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.