x86_64 syscall vulnerability
Published Sep 24, 2007
7.2
HIGHCVSS 2.0
EPSS 0.82%
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.
Affected products
No data.
- ≤ 2.4.35
- ≤ 2.6.22.6
No data.
Red Hat Enterprise Linux 3
kernel-0:2.4.21-52.EL
Fixed · RHSA-2007:0938
Red Hat Enterprise Linux 4
kernel-0:2.6.9-55.0.9.EL
Fixed · RHSA-2007:0937
Red Hat Enterprise Linux 5
kernel-0:2.6.18-8.1.14.el5
Fixed · RHSA-2007:0936
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | kernel-0:2.4.21-52.EL | Fixed | RHSA-2007:0938 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-55.0.9.EL | Fixed | RHSA-2007:0937 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-8.1.14.el5 | Fixed | RHSA-2007:0936 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affected users who were running 64-bit versions of Red Hat Enterprise Linux 3, 4, or 5 on x86_64 architecture. It did not affect users of Red Hat Enterprise Linux 2.1.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (8 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.82% (0.00820) | 55.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.82% (0.00820) | 52.27th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.22% (0.00220) | 42.61th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.00% (0.04005) | 85.96th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.00% (0.04005) | 84.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.00% (0.04005) | 67.83th | v2 (v2022.01.01) |
References (43)
- http://fedoranews.org/updates/FEDORA-2007-229.shtml vendor-advisoryx_refsource_FEDORA
- http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html vendor-advisoryx_refsource_SUSE
- http://lkml.org/lkml/2007/9/21/512 mailing-listx_refsource_MLISTPatch
- http://lkml.org/lkml/2007/9/21/513 mailing-listx_refsource_MLIST
- http://marc.info/?l=full-disclosure&m=119062587407908&w=2 mailing-listx_refsource_FULLDISC
- http://secunia.com/advisories/26917 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26919 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26934 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26953 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26955 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26978 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26994 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/26995 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27212 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27227 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/27912 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/29058 third-party-advisoryx_refsource_SECUNIA
- http://securitytracker.com/id?1018748 vdb-entryx_refsource_SECTRACK
- http://www.debian.org/security/2007/dsa-1378 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2007/dsa-1381 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2008/dsa-1504 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7 x_refsource_CONFIRM
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:195 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:196 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:008 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:105 vendor-advisoryx_refsource_MANDRIVA
- http://www.novell.com/linux/security/advisories/2007_53_kernel.html vendor-advisoryx_refsource_SUSE
- http://www.redhat.com/support/errata/RHSA-2007-0936.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0937.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2007-0938.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/archive/1/480451/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/480705/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/25774 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/usn-518-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2007/3246 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2007-4573 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=294541 Issue Tracking
- https://issues.rpath.com/browse/RPL-1754 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2007-4573
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9735 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2007-4573
- https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.