xen: pv bootloader doesn't check the size of the bzip2 or lzma compressed kernel
Published Oct 31, 2012
2.7
LOWCVSS 2.0
EPSS 0.92%
Description
The PyGrub boot loader in Xen unstable before changeset 25589:60f09d1ab1fe, 4.2.x, and 4.1.x allows local para-virtualized guest users to cause a denial of service (memory consumption) via a large (1) bzip2 or (2) lzma compressed kernel image.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
xen-0:3.0.3-135.el5_8.4
Fixed · RHSA-2012:1130
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | xen-0:3.0.3-135.el5_8.4 | Fixed | RHSA-2012:1130 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
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:L/Au:S/C:N/I:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.92% (0.00923) | 58.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.92% (0.00923) | 55.51th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.35% (0.00350) | 55.24th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.06% (0.00064) | 28.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 26.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (19)
- http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817 x_refsource_MISCBroken Link
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1130.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/49184 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51413 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2012/10/26/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/53650 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id?1027090 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- http://xenbits.xensource.com/hg/xen-unstable.hg/rev/60f09d1ab1fe x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2012-2625 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=821676 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-2625
- https://www.cve.org/CVERecord?id=CVE-2012-2625
Change history (0)
No recorded changes yet.