xen: use-after-free in libxl_list_cpupool under memory pressure (XSA-70)
Published Oct 17, 2013
4.4
MEDIUMCVSS 2.0
EPSS 0.40%
Description
Use-after-free vulnerability in the libxl_list_cpupool function in the libxl toolstack library in Xen 4.2.x and 4.3.x, when running "under memory pressure," returns the original pointer when the realloc function fails, which allows local users to cause a denial of service (heap corruption and crash) and possibly execute arbitrary code via unspecified vectors.
Affected products
Remediation
Red Hat statement
Not vulnerable. This issue does not affect the versions of the xen package as shipped with Red Hat Enterprise Linux 5 as it does not provide support for the libxl toolstack. This issue does not affect Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG 2.
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:M/Au:N/C:P/I:P/A:P
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 | 0.40% (0.00402) | 31.97th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00402) | 31.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00082) | 21.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.72% (0.02720) | 82.87th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.72% (0.02720) | 81.19th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.72% (0.02720) | 62.69th | v2 (v2022.01.01) |
References (7)
- http://security.gentoo.org/glsa/glsa-201407-03.xml vendor-advisoryx_refsource_GENTOO
- http://www.openwall.com/lists/oss-security/2013/10/10/12 mailing-listx_refsource_MLIST
- http://xenbits.xen.org/xsa/advisory-70.html
- https://access.redhat.com/security/cve/CVE-2013-4371 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1012582 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-4371
- https://www.cve.org/CVERecord?id=CVE-2013-4371
| Link | Providers | Tags |
|---|---|---|
| http://security.gentoo.org/glsa/glsa-201407-03.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.openwall.com/lists/oss-security/2013/10/10/12 | mailing-listx_refsource_MLIST | |
| http://xenbits.xen.org/xsa/advisory-70.html | ||
| https://access.redhat.com/security/cve/CVE-2013-4371 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1012582 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-4371 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-4371 |
Change history (0)
No recorded changes yet.