kernel: integer overflow in fb_mmap
Published Apr 13, 2013 ·Due Oct 6, 2022
7.8
HIGHCVSS 3.1
EPSS 3.21%
Description
Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.
Affected products
No data.
- ≥ 2.6.12 · < 3.0.75
- ≥ 3.1 · < 3.2.45
- ≥ 3.3 · < 3.4.42
- ≥ 3.5 · < 3.8.9
- 4.1.2
No data.
Red Hat Enterprise Linux 5
kernel-0:2.6.18-409.el5
Fixed · RHSA-2016:0450
Red Hat Enterprise Linux 6
kernel-0:2.6.32-504.el6
Fixed · RHSA-2014:1392
Red Hat Enterprise Linux 6.2 Advanced Update Support
kernel-0:2.6.32-220.60.2.el6
Fixed · RHSA-2015:0695
Red Hat Enterprise Linux 6.4 Advanced Update Support
kernel-0:2.6.32-358.59.1.el6
Fixed · RHSA-2015:0803
Red Hat Enterprise Linux 6.5 Extended Update Support
kernel-0:2.6.32-431.53.2.el6
Fixed · RHSA-2015:0782
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-409.el5 | Fixed | RHSA-2016:0450 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-504.el6 | Fixed | RHSA-2014:1392 |
| Red Hat Enterprise Linux 6.2 Advanced Update Support | kernel-0:2.6.32-220.60.2.el6 | Fixed | RHSA-2015:0695 |
| Red Hat Enterprise Linux 6.4 Advanced Update Support | kernel-0:2.6.32-358.59.1.el6 | Fixed | RHSA-2015:0803 |
| Red Hat Enterprise Linux 6.5 Extended Update Support | kernel-0:2.6.32-431.53.2.el6 | Fixed | RHSA-2015:0782 |
| Red Hat Enterprise Linux 7 | 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
This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise MRG 2. This issue affects the versions of Linux kernel as shipped with Red Hat Enterprise Linux 5. Future kernel updates for Red Hat Enterprise Linux 5 may address this issue.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:C/I:C/A:C
Date Added
Sep 15, 2022
Patch Due
Oct 6, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed May 1, 2025 · SSVC 2.0.3
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.21% (0.03212) | 87.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.37% (0.03373) | 87.16th | v5 (v2026.06.15) |
| Feb 10, 2026 | 2.70% (0.02696) | 85.53th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.09% (0.01091) | 76.39th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00094) | 41.54th | v3 (v2023.03.01) |
| Jun 29, 2024 | 0.09% (0.00094) | 40.18th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.90% (0.00897) | 80.80th | v3 (v2023.03.01) |
| Aug 12, 2023 | 1.24% (0.01239) | 83.75th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00204) | 56.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.83% (0.07834) | 93.25th | v2 (v2022.01.01) |
| Apr 1, 2022 | 7.83% (0.07834) | 92.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.83% (0.07834) | 81.57th | v2 (v2022.01.01) |
References (22)
- http://forum.xda-developers.com/showthread.php?t=2255491 x_refsource_MISCExploit
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=b4cbb197c7e7a68dbad0d491242e3ca67420c13e x_refsource_CONFIRMBroken Link
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fc9bbca8f650e5f738af8806317c0a041a48ae4a x_refsource_CONFIRMBroken Link
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 x_refsource_CONFIRMThird Party Advisory
- http://marc.info/?l=linux-kernel&m=136616837923938&w=2 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0695.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0782.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2015-0803.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.droid-life.com/2013/04/09/root-method-released-for-droid-razr-hd-running-android-4-1-2-other-devices-too/ x_refsource_MISCExploitIssue TrackingThird Party Advisory
- http://www.droidrzr.com/index.php/topic/15208-root-motochopper-yet-another-android-root-exploit/ x_refsource_MISCExploitIssue Tracking
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.8.9 x_refsource_CONFIRMMailing ListRelease Notes
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:176 vendor-advisoryx_refsource_MANDRIVABroken Link
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.securityfocus.com/bid/59264 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2013-2596 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1034490 Issue Tracking
- https://github.com/torvalds/linux/commit/b4cbb197c7e7a68dbad0d491242e3ca67420c13e x_refsource_CONFIRMPatch
- https://github.com/torvalds/linux/commit/fc9bbca8f650e5f738af8806317c0a041a48ae4a x_refsource_CONFIRMExploitPatch
- https://nvd.nist.gov/vuln/detail/CVE-2013-2596
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2013-2596 government-resourceUS Government Resource
- https://www.cve.org/CVERecord?id=CVE-2013-2596
Change history (0)
No recorded changes yet.