glibc: per-thread memory leak in __res_vinit with IPv6 nameservers
Published Feb 16, 2017
7.5
HIGHCVSS 3.0
EPSS 3.36%
Description
Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a denial of service (memory consumption) by leveraging partial initialization of internal resolver data structures.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
compat-glibc
Not affected
Red Hat Enterprise Linux 5
glibc
Not affected
Red Hat Enterprise Linux 6
compat-glibc
Not affected
Red Hat Enterprise Linux 6
glibc
Not affected
Red Hat Enterprise Linux 7
compat-glibc
Not affected
Red Hat Enterprise Linux 7
glibc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 5 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 6 | glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | compat-glibc | Not affected | n/a |
| Red Hat Enterprise Linux 7 | glibc | Not 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:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
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 | 3.36% (0.03361) | 88.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.36% (0.03361) | 87.12th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.19% (0.01192) | 76.95th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.38% (0.03380) | 78.78th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.19% (0.01192) | 77.42th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.84% (0.00845) | 82.85th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.84% (0.00845) | 81.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.84% (0.00845) | 79.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (9)
- http://www.openwall.com/lists/oss-security/2016/08/02/5 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/92257 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-5417 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1362534 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-5417
- https://sourceware.org/bugzilla/show_bug.cgi?id=19257 x_refsource_CONFIRMIssue TrackingPatchThird Party AdvisoryVDB Entry
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7 x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2016-5417
- https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html mailing-listx_refsource_MLISTRelease Notes
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/08/02/5 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/92257 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-5417 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1362534 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-5417 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=19257 | x_refsource_CONFIRMIssue TrackingPatchThird Party AdvisoryVDB Entry | |
| https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=commitdiff%3Bh=2212c1420c92a33b0e0bd9a34938c9814a56c0f7 | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2016-5417 | ||
| https://www.sourceware.org/ml/libc-alpha/2016-08/msg00212.html | mailing-listx_refsource_MLISTRelease Notes |
Change history (0)
No recorded changes yet.