glibc: Memory leak in glob with GLOB_TILDE
Published Oct 20, 2017
5.9
MEDIUMCVSS 3.0
EPSS 1.43%
Description
The glob function in glob.c in the GNU C Library (aka glibc or libc6) before 2.27, when invoked with GLOB_TILDE, could skip freeing allocated memory when processing the ~ operator with a long user name, potentially leading to a denial of service (memory leak).
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
compat-glibc
Will not fix
Red Hat Enterprise Linux 5
glibc
Will not fix
Red Hat Enterprise Linux 6
compat-glibc
Will not fix
Red Hat Enterprise Linux 6
glibc
Will not fix
Red Hat Enterprise Linux 7
compat-glibc
Will not fix
Red Hat Enterprise Linux 7
glibc
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | compat-glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | compat-glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | compat-glibc | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | glibc | 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.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
AV:N/AC:M/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
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.43% (0.01431) | 72.07th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.43% (0.01431) | 71.85th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00099) | 41.47th | v3 (v2023.03.01) |
| Jun 10, 2024 | 0.10% (0.00099) | 41.11th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00098) | 39.11th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.78% (0.00777) | 21.50th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.78% (0.00777) | 0.00th | v1 |
References (6)
- http://www.securityfocus.com/bid/101517 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2017-15671 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1504806 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2017-15671
- https://sourceware.org/bugzilla/show_bug.cgi?id=22325 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-15671
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101517 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2017-15671 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1504806 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-15671 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=22325 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-15671 |
Change history (0)
No recorded changes yet.