The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-264.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 3 advisories
- RHSA-2007:0938 Released 2007-09-27 · Red Hat rating Importantkernel security update
- Red Hat Desktop version 3 kernel-2.4.21-52.EL, kernel-2.4.21-52.EL.athlon, kernel-2.4.21-52.EL.ia32e +14
- Red Hat Enterprise Linux AS version 3 kernel-2.4.21-52.EL, kernel-2.4.21-52.EL.athlon, kernel-2.4.21-52.EL.ia32e +22
- Red Hat Enterprise Linux ES version 3 kernel-2.4.21-52.EL, kernel-2.4.21-52.EL.athlon, kernel-2.4.21-52.EL.ia32e +18
- Red Hat Enterprise Linux WS version 3 kernel-2.4.21-52.EL, kernel-2.4.21-52.EL.athlon, kernel-2.4.21-52.EL.ia32e +18
- RHSA-2007:0937 Released 2007-09-27 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux AS version 4 kernel-2.6.9-55.0.9.EL, kernel-2.6.9-55.0.9.EL.ia64, kernel-2.6.9-55.0.9.EL.ppc64iseries +14
- Red Hat Enterprise Linux Desktop version 4 kernel-2.6.9-55.0.9.EL, kernel-devel-2.6.9-55.0.9.EL, kernel-doc-2.6.9-55.0.9.EL +8
- Red Hat Enterprise Linux ES version 4 kernel-2.6.9-55.0.9.EL, kernel-2.6.9-55.0.9.EL.ia64, kernel-devel-2.6.9-55.0.9.EL +12
- Red Hat Enterprise Linux WS version 4 kernel-2.6.9-55.0.9.EL, kernel-2.6.9-55.0.9.EL.ia64, kernel-devel-2.6.9-55.0.9.EL +12
- RHSA-2007:0936 Released 2007-09-27 · Red Hat rating Importantkernel security update
- Red Hat Enterprise Linux (v. 5 server) kernel-2.6.18-8.1.14.el5, kernel-2.6.18-8.1.14.el5.ia64, kernel-PAE-2.6.18-8.1.14.el5 +10
- Red Hat Enterprise Linux Desktop (v. 5 client) kernel-2.6.18-8.1.14.el5, kernel-PAE-2.6.18-8.1.14.el5, kernel-PAE-devel-2.6.18-8.1.14.el5 +4
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2007:0938 |
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2007:0936 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2007:0938 |
| Red Hat Enterprise Linux AS version 4 | Fixed | RHSA-2007:0937 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2007:0936 |
| Red Hat Enterprise Linux Desktop version 4 | Fixed | RHSA-2007:0937 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2007:0938 |
| Red Hat Enterprise Linux ES version 4 | Fixed | RHSA-2007:0937 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2007:0938 |
| Red Hat Enterprise Linux WS version 4 | Fixed | RHSA-2007:0937 |
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4573
- 2026-10-03 Alias added: GHSA-jqfp-qwq6-6w3h
References
Advisory 15
Other 7
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- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2007-4573 · CVE Program
- CVE-2007-4573 · NVD
- FIRST EPSS
- GHSA-jqfp-qwq6-6w3h · GitHub Advisory Database · CC BY 4.0
- CVE-2007-4573 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences