In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in…
Priority MEDIUM 50CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 3 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In the GNU C Library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match.
Why it matters now
EPSS 0.04731 91st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 3 fixed, 3 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* | up to 2.29 | Vulnerable | GNU |
| cpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:* | all versions | Vulnerable | NetApp |
| cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* | 7.7.2.0 to before 7.7.2.21; 7.8.2.0 to before 7.8.2.8; 8.0.0 to before 8.1.1 | Vulnerable | McAfee |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* | 19.10 | Vulnerable | Canonical |
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.29 Vulnerable ·GNU
- cpe:2.3:a:netapp:cloud_backup:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·NetApp
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:* Versions 7.7.2.0 to before 7.7.2.21; 7.8.2.0 to before 7.8.2.8; 8.0.0 to before 8.1.1 Vulnerable ·McAfee
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2021:1585 Released 2021-05-18 · Red Hat rating Moderateglibc security, bug fix, and enhancement update
- Red Hat CodeReady Linux Builder (v. 8) glibc-benchtests-2.28-151.el8, glibc-nss-devel-2.28-151.el8, glibc-static-2.28-151.el8 +1
- Red Hat Enterprise Linux AppStream (v. 8) compat-libpthread-nonshared-2.28-151.el8, glibc-utils-2.28-151.el8
- Red Hat Enterprise Linux BaseOS (v. 8) glibc-2.28-151.el8, glibc-all-langpacks-2.28-151.el8, glibc-common-2.28-151.el8 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:1585 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2021:1585 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:1585 |
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9169
- 2026-10-03 Alias added: GHSA-mw8g-rgqf-rw5h
References
Exploit 2
Patch 2
Advisory 4
Sources
- CVE-2019-9169 · CVE Program
- CVE-2019-9169 · NVD
- FIRST EPSS
- GHSA-mw8g-rgqf-rw5h · GitHub Advisory Database · CC BY 4.0
- CVE-2019-9169 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences