Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86
Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.
Noroxi analysis
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We use this product, ask for help- Published
- Oct 4, 2017
- Updated
- Jun 16, 2026
- EPSS
- 10.7% · 96th percentile
- CWE
- CWE-119
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Report tools
Action score
64
This week
Don’t wait for the next maintenance window.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 30 / 30 · Listed
- EPSS
- 3 / 30 · 10.7%
CISA SSVC decision
- Exploitation
- active
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Actively exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on Sep 9, 2024. That signals real attacks, not theory.
Remediation deadline for government agencies: Sep 30, 2024.
Known to be used in ransomware campaigns.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| centos | centos | cpe:2.3:o:centos:centos |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- centos centos6.0
- centos centos6.1
- centos centos6.2
- centos centos6.3
- centos centos6.4
- centos centos6.5
- centos centos6.6
- centos centos6.7
- centos centos6.8
- centos centos6.9
- centos centos7.1406
- centos centos7.1503
- centos centos7.1511
- centos centos7.1611
- linux linux kernel4.0 and later · before 4.0.2
- linux linux kernel2.6.25 and later · before 3.2.70
- linux linux kernel3.3 and later · before 3.4.109
- linux linux kernel3.5 and later · before 3.10.77
- linux linux kernel3.11 and later · before 3.12.43
- linux linux kernel3.13 and later · before 3.14.41
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 4.0.2-1 | 4.0.2-1 |
| Red Hat:enterprise_linux:6::client | kernel | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-abi-whitelists | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-debuginfo | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debug-devel | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-i686 | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-debuginfo-common-x86_64 | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-devel | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-doc | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-firmware | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | kernel-headers | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | perf | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | perf-debuginfo | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | python-perf | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::client | python-perf-debuginfo | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-bootwrapper | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-ppc64 | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-debuginfo-common-s390x | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump-debuginfo | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:6::server | kernel-kdump-devel | before 0:2.6.32-696.10.3.el6 | 0:2.6.32-696.10.3.el6 |
| Red Hat:enterprise_linux:7::client | kernel | before 0:3.10.0-693.el7 | 0:3.10.0-693.el7 |
+96
Same product
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- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
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Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:linux | 4.0.2-1 · Debian:12 | Package registry (OSV) |
| red hat:kernel | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-abi-whitelists | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common-x86_64 | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-devel | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-tools-debuginfo | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:kernel-tools-libs-devel | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:perf-debuginfo | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:python-perf-debuginfo | 0:3.10.0-693.el7 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| suse:kernel-bigmem | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-bigsmp | 3.0.101-0.47.106.8.1 · SUSE:Linux Enterprise Server 11 SP3-LTSS | Package registry (OSV) |
| suse:kernel-default | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-docs | 3.0.101-108.13.2 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | Package registry (OSV) |
| suse:kernel-ec2 | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-pae | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-ppc64 | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-rt | 3.0.101.rt130-69.11.1 · SUSE:Linux Enterprise Real Time 11 SP4 | Package registry (OSV) |
| suse:kernel-source | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-syms | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-trace | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:kernel-xen | 3.0.101-108.13.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Exploit-DB entry ×1
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2017-09-26 |
| Proof-of-concept repository on GitHub | stars:7 | 2018-06-18 |
| Proof-of-concept repository on GitHub | stars:4 | 2022-10-16 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-9 d
- Published
- CISA KEV+2531 d
- TodaySep 30, 2026+3283 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.securityfocus.com/bid/101010
- www.securitytracker.com/id/1039434
- access.redhat.com/errata/RHSA-2017:2793
- access.redhat.com/errata/RHSA-2017:2794
- access.redhat.com/errata/RHSA-2017:2795
- access.redhat.com/errata/RHSA-2017:2796
- access.redhat.com/errata/RHSA-2017:2797
- access.redhat.com/errata/RHSA-2017:2798
- access.redhat.com/errata/RHSA-2017:2799
- access.redhat.com/errata/RHSA-2017:2800
- access.redhat.com/errata/RHSA-2017:2801
- access.redhat.com/errata/RHSA-2017:2802
- www.qualys.com/2017/09/26/cve-2017-1000253/cve-2017-1000253.txt
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-1000253
Vendor advisories and official records. Exploit/PoC links are deliberately left out.