DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
DB_LOOKUP in nss_files/files-XXX.c in the Name Service Switch (NSS) in GNU C Library (aka glibc or libc6) 2.21 and earlier does not properly check if a file is open, which allows remote attackers to cause a denial of service (infinite loop) by performing a look-up on a database while iterating over it, which triggers the file pointer to be reset.
Why it matters now
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 · 9
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp3:*:*:*:*:*:* | 11 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp4:*:*:*:*:*:* | 11 sp4 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:* | 11.0 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:* | 11.0 sp3 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:* | 11.0 sp4 | Vulnerable | SUSE |
| cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* | up to 2.21 | Vulnerable | GNU |
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* | 12.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* | 15.10 | Vulnerable | Canonical |
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp3:*:*:*:*:*:* Versions 11 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp4:*:*:*:*:*:* Versions 11 sp4 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:* Versions 11.0 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:* Versions 11.0 sp3 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:* Versions 11.0 sp4 Vulnerable ·SUSE
- cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions up to 2.21 Vulnerable ·GNU
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* Versions 15.10 Vulnerable ·Canonical
Remediation
Red Hat 1 advisory
- RHSA-2015:0327 Released 2015-03-05 · Red Hat rating Moderateglibc security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) glibc-2.17-78.el7, glibc-common-2.17-78.el7, glibc-devel-2.17-78.el7 +3
- Red Hat Enterprise Linux Client Optional (v. 7) glibc-static-2.17-78.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) glibc-2.17-78.el7, glibc-common-2.17-78.el7, glibc-devel-2.17-78.el7 +3
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-static-2.17-78.el7
- Red Hat Enterprise Linux Server (v. 7) glibc-2.17-78.el7, glibc-2.17-78.el7.ppc, glibc-common-2.17-78.el7 +5
- Red Hat Enterprise Linux Server Optional (v. 7) glibc-static-2.17-78.el7, glibc-static-2.17-78.el7.ppc
- Red Hat Enterprise Linux Workstation (v. 7) glibc-2.17-78.el7, glibc-common-2.17-78.el7, glibc-devel-2.17-78.el7 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-static-2.17-78.el7
Vendor assessments
Red Hat
Red Hat rating: Low. 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 Client (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:0327 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:0327 |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-8121
- 2026-10-03 Alias added: GHSA-hw66-pxhg-8fx8
References
Sources
- CVE-2014-8121 · CVE Program
- CVE-2014-8121 · NVD
- FIRST EPSS
- GHSA-hw66-pxhg-8fx8 · GitHub Advisory Database · CC BY 4.0
- CVE-2014-8121 · Red Hat security data · CC BY 4.0
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