glibc: _IO_wstr_overflow integer overflow
Published Mar 20, 2017
8.1
HIGHCVSS 3.0
EPSS 3.87%
Description
Integer overflow in the _IO_wstr_overflow function in libio/wstrops.c in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of service (application crash) or possibly execute arbitrary code via vectors related to computing a size in bytes, which triggers a heap-based buffer overflow.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
glibc
Will not fix
Red Hat Enterprise Linux 6
glibc
Will not fix
Red Hat Enterprise Linux 7
glibc
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | glibc | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/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
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 | 3.87% (0.03871) | 89.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.87% (0.03871) | 88.80th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.21% (0.01215) | 77.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.08% (0.03084) | 77.84th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.68% (0.00677) | 69.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.51% (0.00508) | 77.33th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.51% (0.00508) | 75.86th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.51% (0.00508) | 73.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00421) | 70.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.46% (0.02464) | 81.64th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.46% (0.02464) | 79.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.46% (0.02464) | 58.48th | v2 (v2022.01.01) |
References (9)
- http://www.openwall.com/lists/oss-security/2017/02/14/9 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/72740 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8983 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1195762 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-8983
- https://sourceware.org/bugzilla/show_bug.cgi?id=17269 x_refsource_CONFIRMIssue TrackingPatch
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2015-8983
- https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html mailing-listx_refsource_MLISTThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2017/02/14/9 | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/72740 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-8983 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1195762 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8983 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=17269 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=bdf1ff052a8e23d637f2c838fa5642d78fcedc33 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2015-8983 | ||
| https://www.sourceware.org/ml/libc-alpha/2015-08/msg00609.html | mailing-listx_refsource_MLISTThird Party Advisory |
Change history (0)
No recorded changes yet.