kernel: User triggerable out-of-bounds read
Published Sep 25, 2017
6.5
MEDIUMCVSS 3.0
EPSS 1.63%
Description
Out-of-bounds memory read in the x509_decode_time function in x509_cert_parser.c in Linux kernels 4.3-rc1 and after.
Affected products
No data.
- 4.3
- 4.3
- 4.3
- 4.3
- 4.3
- 4.3
- 4.3
- 4.3
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 Linux 7
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel-rt
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 Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7 and MRG-2, as the code introduced the flaw is not present in these products.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:S/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 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 | 1.63% (0.01631) | 75.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.63% (0.01631) | 73.05th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.22% (0.00218) | 42.38th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.09% (0.00093) | 41.21th | v3 (v2023.03.01) |
| May 8, 2023 | 0.09% (0.00093) | 38.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00120) | 44.39th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00890) | 28.64th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00890) | 26.62th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00890) | 12.04th | v2 (v2022.01.01) |
References (6)
- http://www.openwall.com/lists/oss-security/2015/11/27/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-5327 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1278978 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc25b994acfbc901429da682d0f73c190e960206 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2015-5327
- https://www.cve.org/CVERecord?id=CVE-2015-5327
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/11/27/1 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2015-5327 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1278978 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cc25b994acfbc901429da682d0f73c190e960206 | x_refsource_CONFIRMPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-5327 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-5327 |
Change history (0)
No recorded changes yet.