lz4: LZ4_decompress_generic() integer overflow (32-bit arches)
Published Jul 3, 2014
5.0
MEDIUMCVSS 2.0
EPSS 2.75%
Description
Yann Collet LZ4 before r119, when used on certain 32-bit platforms that allocate memory beyond 0x80000000, does not properly detect integer overflows, which allows context-dependent attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted Literal Run, a different vulnerability than CVE-2014-4611.
Affected products
No data.
- ≤ r118
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
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 | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| 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 versions of the kernel package as shipped with Red Hat Enterprise Linux 5, 6, 7 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:N/AC:L/Au:N/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.75% (0.02752) | 85.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.75% (0.02752) | 84.24th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.46% (0.00462) | 61.31th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.74% (0.01735) | 71.13th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.46% (0.00462) | 62.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.56% (0.00560) | 78.41th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.56% (0.00560) | 76.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.56% (0.00560) | 74.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (9)
- http://blog.securitymouse.com/2014/07/i-was-wrong-proving-lz4-exploitable.html x_refsource_MISC
- http://fastcompression.blogspot.fr/2014/07/software-vulnerabilities-how-it-works.html x_refsource_CONFIRM
- http://secunia.com/advisories/59770 third-party-advisoryx_refsource_SECUNIA
- https://access.redhat.com/security/cve/CVE-2014-4715 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1115767 Issue Tracking
- https://code.google.com/p/lz4/issues/detail?id=134 x_refsource_CONFIRM
- https://code.google.com/p/lz4/source/detail?r=119 x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2014-4715
- https://www.cve.org/CVERecord?id=CVE-2014-4715
| Link | Providers | Tags |
|---|---|---|
| http://blog.securitymouse.com/2014/07/i-was-wrong-proving-lz4-exploitable.html | x_refsource_MISC | |
| http://fastcompression.blogspot.fr/2014/07/software-vulnerabilities-how-it-works.html | x_refsource_CONFIRM | |
| http://secunia.com/advisories/59770 | third-party-advisoryx_refsource_SECUNIA | |
| https://access.redhat.com/security/cve/CVE-2014-4715 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1115767 | Issue Tracking | |
| https://code.google.com/p/lz4/issues/detail?id=134 | x_refsource_CONFIRM | |
| https://code.google.com/p/lz4/source/detail?r=119 | x_refsource_CONFIRM | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-4715 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-4715 |
Change history (0)
No recorded changes yet.