HIGH
libidn: Out-of-bounds read due to use of fgets with fixed-size buffer
Published Sep 7, 2016
7.5
HIGHCVSS 3.0
EPSS 6.72%
Description
idn in GNU libidn before 1.33 might allow remote attackers to obtain sensitive memory information by reading a zero byte as input, which triggers an out-of-bounds read.
Affected products
No data.
Configuration 2
OR
- 12.04
- 14.04
- 16.04
No data.
Red Hat Enterprise Linux 5
libidn
Will not fix
Red Hat Enterprise Linux 6
libidn
Will not fix
Red Hat Enterprise Linux 7
libidn
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | libidn | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | libidn | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | libidn | Will not fix | 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.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
1 other source (Red Hat) ▾
3.7 LOW Red Hat
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact Low
Integrity Impact None
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.72% 0.06721
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06721
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.72% (0.06721) | 93.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.78% (0.06776) | 93.13th | v5 (v2026.06.15) |
| May 13, 2026 | 2.78% (0.02777) | 86.19th | v4 (v2025.03.14) |
| Feb 18, 2026 | 4.13% (0.04126) | 88.38th | v4 (v2025.03.14) |
| Dec 28, 2025 | 5.37% (0.05368) | 89.78th | v4 (v2025.03.14) |
| Dec 27, 2025 | 3.63% (0.03634) | 87.52th | v4 (v2025.03.14) |
| Oct 28, 2025 | 5.37% (0.05368) | 89.62th | v4 (v2025.03.14) |
| Oct 27, 2025 | 3.63% (0.03634) | 87.34th | v4 (v2025.03.14) |
| Oct 23, 2025 | 5.37% (0.05368) | 89.61th | v4 (v2025.03.14) |
| Oct 1, 2025 | 7.11% (0.07114) | 91.22th | v4 (v2025.03.14) |
| Sep 16, 2025 | 4.85% (0.04854) | 89.14th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.61% (0.02613) | 84.32th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.92% (0.05918) | 83.93th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.29% (0.02293) | 83.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.29% (0.00289) | 69.81th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00289) | 68.08th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00289) | 64.03th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.17% (0.02172) | 80.77th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.17% (0.02172) | 78.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.17% (0.02172) | 57.73th | v2 (v2022.01.01) |
Weaknesses (1)
References (15)
- http://git.savannah.gnu.org/cgit/libidn.git/commit/?id=570e68886c41c2e765e6218cb317d9a9a447a041 x_refsource_CONFIRMIssue TrackingPatch
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00098.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://www.debian.org/security/2016/dsa-3658 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2016/07/20/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/07/21/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/92070 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3068-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-8948 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1359141 Issue Tracking
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.gnu.org/archive/html/help-libidn/2016-07/msg00009.html mailing-listx_refsource_MLISTVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8948
- https://www.cve.org/CVERecord?id=CVE-2015-8948
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Sep 7, 2016
Updated Aug 6, 2024
Reserved Jul 21, 2016
Link CVE-2015-8948
CISA Vulnrichment
Updated n/a