glibc: Use-after-free read access in clntudp_call in sunrpc
Published Sep 7, 2017
5.9
MEDIUMCVSS 3.0
EPSS 2.40%
Description
Use-after-free vulnerability in the clntudp_call function in sunrpc/clnt_udp.c in the GNU C Library (aka glibc or libc6) before 2.26 allows remote attackers to have unspecified impact via vectors related to error path.
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
Red Hat statement
This issue does not affect the versions of gcc compiler shipped with Red Hat Enterprise Linux, because The patch for CVE-2016-4429 was not backported for those versions of glibc.
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:H/A:N
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:M/Au:N/C:N/I:P/A:N
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
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.40% (0.02403) | 83.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.40% (0.02403) | 81.83th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.37% (0.00372) | 56.87th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.48% (0.00476) | 75.46th | v3 (v2023.03.01) |
| Apr 3, 2024 | 0.64% (0.00635) | 78.73th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.64% (0.00635) | 76.73th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.39% (0.00389) | 69.90th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00667) | 76.56th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.57% (0.01565) | 33.71th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.57% (0.01565) | 0.00th | v1 |
References (9)
- https://access.redhat.com/security/cve/CVE-2017-12133 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1478288 Issue Tracking
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2017-12133
- https://sourceware.org/bugzilla/show_bug.cgi?id=21115 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=d42eed4a044e5e10dfb885cf9891c2518a72a491 x_refsource_CONFIRM
- https://usn.ubuntu.com/4416-1/ vendor-advisoryx_refsource_UBUNTU
- https://www.cve.org/CVERecord?id=CVE-2017-12133
- https://www.securityfocus.com/bid/100679 vdb-entryx_refsource_BID
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2017-12133 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1478288 | Issue Tracking | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYZL6PAKI73XYRJYL5VLDGA4FFGWMB7A/ | vendor-advisoryx_refsource_FEDORA | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-12133 | ||
| https://sourceware.org/bugzilla/show_bug.cgi?id=21115 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=d42eed4a044e5e10dfb885cf9891c2518a72a491 | x_refsource_CONFIRM | |
| https://usn.ubuntu.com/4416-1/ | vendor-advisoryx_refsource_UBUNTU | |
| https://www.cve.org/CVERecord?id=CVE-2017-12133 | ||
| https://www.securityfocus.com/bid/100679 | vdb-entryx_refsource_BID |
Change history (0)
No recorded changes yet.