kernel: xen: Page reference counting error due to XSA-45/CVE-2013-1918 fixes
Published Aug 28, 2013
7.4
HIGHCVSS 2.0
EPSS 0.58%
Description
Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service (premature page free and hypervisor crash) or possibly gain privileges via unspecified vectors.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
kernel-xen
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-xen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the kernel-xen package as shipped with Red Hat Enterprise Linux 5 because we did not backport CVE-2013-1918 fix. This issue did not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2 because of missing Xen hypervisor support.
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:A/AC:M/Au:S/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.58% (0.00583) | 45.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.58% (0.00583) | 43.04th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.37% (0.00366) | 56.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/55082 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201309-24.xml vendor-advisoryx_refsource_GENTOO
- http://support.citrix.com/article/CTX138134 x_refsource_CONFIRMPatchVendor Advisory
- http://www.debian.org/security/2014/dsa-3006 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2013/06/26/5 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2013-1432 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=974250 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-1432
- https://www.cve.org/CVERecord?id=CVE-2013-1432
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00021.html | vendor-advisoryx_refsource_SUSE | |
| http://secunia.com/advisories/55082 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201309-24.xml | vendor-advisoryx_refsource_GENTOO | |
| http://support.citrix.com/article/CTX138134 | x_refsource_CONFIRMPatchVendor Advisory | |
| http://www.debian.org/security/2014/dsa-3006 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.openwall.com/lists/oss-security/2013/06/26/5 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2013-1432 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=974250 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-1432 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-1432 |
Change history (0)
No recorded changes yet.