JDK: buffer overflow in jio_snprintf() and jio_vsnprintf()
Published Feb 11, 2019
9.8
CRITICALCVSS 3.0
EPSS 2.74%
Description
In Eclipse OpenJ9, prior to the 0.12.0 release, the jio_snprintf() and jio_vsnprintf() native methods ignored the length parameter. This affects existing APIs that called the functions to exceed the allocated buffer. This functions were not directly callable by non-native user code.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<0.12.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| The Eclipse Foundation | Eclipse OpenJ9 | n/a |
|
Configuration 2
- 5.8
- 6.0
- 7.0
- 6.0
- 7.0
- 6.0
- 7.0
No data.
Red Hat Enterprise Linux 6 Supplementary
java-1.7.1-ibm-1:1.7.1.4.40-1jpp.1.el6_10
Fixed · RHSA-2019:0474
Red Hat Enterprise Linux 6 Supplementary
java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el6_10
Fixed · RHSA-2019:0469
Red Hat Enterprise Linux 7 Supplementary
java-1.7.1-ibm-1:1.7.1.4.40-1jpp.1.el7
Fixed · RHSA-2019:0473
Red Hat Enterprise Linux 7 Supplementary
java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el7
Fixed · RHSA-2019:0472
Red Hat Enterprise Linux 8
java-1.8.0-ibm-1:1.8.0.5.35-3.el8_0
Fixed · RHSA-2019:1238
Red Hat Satellite 5.8
java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el6_10
Fixed · RHSA-2019:0640
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 Supplementary | java-1.7.1-ibm-1:1.7.1.4.40-1jpp.1.el6_10 | Fixed | RHSA-2019:0474 |
| Red Hat Enterprise Linux 6 Supplementary | java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el6_10 | Fixed | RHSA-2019:0469 |
| Red Hat Enterprise Linux 7 Supplementary | java-1.7.1-ibm-1:1.7.1.4.40-1jpp.1.el7 | Fixed | RHSA-2019:0473 |
| Red Hat Enterprise Linux 7 Supplementary | java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el7 | Fixed | RHSA-2019:0472 |
| Red Hat Enterprise Linux 8 | java-1.8.0-ibm-1:1.8.0.5.35-3.el8_0 | Fixed | RHSA-2019:1238 |
| Red Hat Satellite 5.8 | java-1.8.0-ibm-1:1.8.0.5.30-1jpp.1.el6_10 | Fixed | RHSA-2019:0640 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of the java-1.8.0-ibm package as shipped with Red Hat Satellite 5. However, OpenJ9 is loaded only by taskomatic and Tomcat. These 2 processes are listening on the loopback interface only. This flaw is not known to be remotely exploitable under any supported scenario in Satellite 5.
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:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.74% (0.02744) | 85.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.74% (0.02744) | 84.19th | v5 (v2026.06.15) |
| Jul 20, 2024 | 1.57% (0.01571) | 87.40th | v3 (v2023.03.01) |
| Jul 4, 2024 | 1.57% (0.01571) | 87.35th | v3 (v2023.03.01) |
| Feb 5, 2024 | 1.85% (0.01848) | 87.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.79% (0.01786) | 86.14th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.66% (0.01659) | 34.20th | v1 |
| Jan 6, 2022 | 1.66% (0.01659) | 33.50th | v1 |
| Sep 1, 2021 | 1.66% (0.01659) | 73.96th | v1 |
| Apr 14, 2021 | 1.66% (0.01659) | 0.00th | v1 |
References (11)
- https://access.redhat.com/errata/RHSA-2019:0469 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0472 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0473 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0474 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0640 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:1238 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-12547 Vendor Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=543659 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1685611 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-12547
- https://www.cve.org/CVERecord?id=CVE-2018-12547
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:0469 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:0472 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:0473 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:0474 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:0640 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:1238 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2018-12547 | Vendor Advisory | |
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=543659 | x_refsource_CONFIRMExploitIssue TrackingVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1685611 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-12547 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-12547 |
Change history (0)
No recorded changes yet.