kernel: Linux stack ASLR implementation Integer overflow
Published Mar 16, 2015
5.0
MEDIUMCVSS 2.0
EPSS 3.81%
Description
The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c.
Affected products
No data.
- ≤ 3.18.9
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-504.30.3.el6
Fixed · RHSA-2015:1221
Red Hat Enterprise Linux 7
kernel-0:3.10.0-229.7.2.ael7b
Fixed · RHSA-2015:1137
Red Hat Enterprise Linux 7
kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1
Fixed · RHSA-2015:1139
Red Hat Enterprise Linux 8
kernel-0:4.18.0-147.el8
Fixed · RHSA-2019:3517
Red Hat Enterprise MRG 2
kernel-rt-1:3.10.0-229.rt56.153.el6rt
Fixed · RHSA-2015:1138
Red Hat Enterprise Linux 5
kernel
Affected
Red Hat Enterprise Linux 7
kernel-alt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-504.30.3.el6 | Fixed | RHSA-2015:1221 |
| Red Hat Enterprise Linux 7 | kernel-0:3.10.0-229.7.2.ael7b | Fixed | RHSA-2015:1137 |
| Red Hat Enterprise Linux 7 | kernel-rt-0:3.10.0-229.7.2.rt56.141.6.el7_1 | Fixed | RHSA-2015:1139 |
| Red Hat Enterprise Linux 8 | kernel-0:4.18.0-147.el8 | Fixed | RHSA-2019:3517 |
| Red Hat Enterprise MRG 2 | kernel-rt-1:3.10.0-229.rt56.153.el6rt | Fixed | RHSA-2015:1138 |
| Red Hat Enterprise Linux 5 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does affect the Linux kernel versions as shipped with Red Hat Enterprise Linux 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates in the respective releases may address this issue. This issue does affect the Linux kernel versions as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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:N/AC:L/Au:N/C:P/I:N/A:N
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 3, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.81% (0.03814) | 89.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.74% (0.03742) | 88.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.44% (0.01439) | 79.36th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.08% (0.01081) | 84.94th | v3 (v2023.03.01) |
| Apr 9, 2024 | 0.79% (0.00787) | 81.14th | v3 (v2023.03.01) |
| Jan 4, 2024 | 1.00% (0.00997) | 81.92th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.41% (0.01408) | 84.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.14% (0.01135) | 82.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
References (24)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e7c22d447bb6d7e37bfe39ff658486ae78e8d77 x_refsource_CONFIRM
- http://hmarco.org/bugs/linux-ASLR-integer-overflow.html x_refsource_MISCExploit
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2015-1137.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1138.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2015-1221.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3170 vendor-advisoryx_refsource_DEBIAN
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.1 x_refsource_CONFIRMVendor Advisory
- http://www.openwall.com/lists/oss-security/2015/02/13/13 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/72607 vdb-entryx_refsource_BID
- http://www.ubuntu.com/usn/USN-2560-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2561-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2562-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2563-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2564-1 vendor-advisoryx_refsource_UBUNTU
- http://www.ubuntu.com/usn/USN-2565-1 vendor-advisoryx_refsource_UBUNTU
- https://access.redhat.com/errata/RHSA-2019:3517 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2015-1593 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1192519 x_refsource_CONFIRMIssue Tracking
- https://github.com/torvalds/linux/commit/4e7c22d447bb6d7e37bfe39ff658486ae78e8d77 x_refsource_CONFIRMExploit
- https://lkml.org/lkml/2015/1/7/811 mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2015-1593
- https://www.cve.org/CVERecord?id=CVE-2015-1593
Change history (0)
No recorded changes yet.