glibc: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding
Published Jan 4, 2021
5.9
MEDIUMCVSS 3.1
EPSS 3.56%
Description
The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32, when processing invalid multi-byte input sequences in the EUC-KR encoding, may have a buffer over-read.
Affected products
No data.
Configuration 2
- 32
- 33
Configuration 3
- n/a
- n/a
- n/a
Configuration 4
- n/a
Configuration 5
- n/a
Configuration 6
- 10.0
No data.
Red Hat Enterprise Linux 7
glibc-0:2.17-322.el7_9
Fixed · RHSA-2021:0348
Red Hat Enterprise Linux 8
glibc-0:2.28-151.el8
Fixed · RHSA-2021:1585
Red Hat Enterprise Linux 8
glibc-0:2.28-151.el8
Fixed · RHSA-2021:1585
Red Hat OpenShift Do
openshiftdo/odo-init-image-rhel7:1.1.3-2
Fixed · RHSA-2021:0949
Red Hat Enterprise Linux 6
glibc
Out of support scope
Red Hat Enterprise Linux 9
glibc
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | glibc-0:2.17-322.el7_9 | Fixed | RHSA-2021:0348 |
| Red Hat Enterprise Linux 8 | glibc-0:2.28-151.el8 | Fixed | RHSA-2021:1585 |
| Red Hat Enterprise Linux 8 | glibc-0:2.28-151.el8 | Fixed | RHSA-2021:1585 |
| Red Hat OpenShift Do | openshiftdo/odo-init-image-rhel7:1.1.3-2 | Fixed | RHSA-2021:0949 |
| Red Hat Enterprise Linux 6 | glibc | Out of support scope | n/a |
| Red Hat Enterprise Linux 9 | glibc | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw has been rated as having moderate impact for glibc packages shipped with Red Hat Enterprise Linux because, the maximum impact of this vulnerability is a crash, and it relies on processing untrusted input in an uncommon encoding (EUC-KR). When this encoding is not used, the vulnerability can not be triggered.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jun 9, 2025 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 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 (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 3.56% (0.03565) | 88.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.54% (0.03538) | 87.73th | v5 (v2026.06.15) |
| Nov 21, 2025 | 0.63% (0.00626) | 69.41th | v4 (v2025.03.14) |
| Nov 18, 2025 | 10.43% (0.10432) | 92.47th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.68% (0.00680) | 69.88th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.71% (0.00712) | 80.26th | v3 (v2023.03.01) |
| Feb 7, 2024 | 2.04% (0.02042) | 87.82th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.95% (0.01946) | 87.34th | v3 (v2023.03.01) |
| Sep 20, 2023 | 0.37% (0.00369) | 69.28th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.32% (0.00321) | 66.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.21% (0.00211) | 57.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.69% (0.02686) | 62.66th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.28% (0.03281) | 66.54th | v5 (v2026.06.15) |
| May 22, 2021 | 3.08% (0.03080) | 0.00th | v1 |
| May 7, 2021 | 8.73% (0.08728) | 0.00th | v1 |
| Apr 27, 2021 | 8.19% (0.08190) | 0.00th | v1 |
| Apr 21, 2021 | 1.86% (0.01865) | 0.00th | v1 |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
References (21)
- https://access.redhat.com/security/cve/CVE-2019-25013 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1912960 Issue Tracking
- https://lists.apache.org/thread.html/r32d767ac804e9b8aad4355bb85960a6a1385eab7afff549a5e98660f%40%3Cjira.kafka.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r448bb851cc8e6e3f93f3c28c70032b37062625d81214744474ac49e7%40%3Cdev.kafka.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r4806a391091e082bdea17266452ca656ebc176e51bb3932733b3a0a2%40%3Cjira.kafka.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r499e4f96d0b5109ef083f2feccd33c51650c1b7d7068aa3bd47efca9%40%3Cjira.kafka.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r5af4430421bb6f9973294691a7904bbd260937e9eef96b20556f43ff%40%3Cjira.kafka.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r750eee18542bc02bd8350861c424ee60a9b9b225568fa09436a37ece%40%3Cissues.zookeeper.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/r7a2e94adfe0a2f0a1d42e4927e8c32ecac97d37db9cb68095fe9ddbc%40%3Cdev.zookeeper.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/rd2354f9ccce41e494fbadcbc5ad87218de6ec0fff8a7b54c8462226c%40%3Cissues.zookeeper.apache.org%3E mailing-list
- https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E mailing-list
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html mailing-listMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4Y6TX47P47KABSFOL26FLDNVCWXDKDEZ/ vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TVCUNLQ3HXGS4VPUQKWTJGRAW2KTFGXS/ vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-25013
- https://security.gentoo.org/glsa/202107-07 vendor-advisoryThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210205-0004/ Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=24973 Issue TrackingPatchThird Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=ee7a3144c9922808181009b7b3e50e852fb4999b
- https://www.cve.org/CVERecord?id=CVE-2019-25013
- https://www.oracle.com/security-alerts/cpuapr2022.html Not Applicable
Change history (0)
No recorded changes yet.