Description
nscd: Null pointer crashes after notfound response
If the Name Service Cache Daemon's (nscd) cache fails to add a not-found
netgroup response to the cache, the client request can result in a null
pointer dereference. This flaw was introduced in glibc 2.15 when the
cache was added to nscd.
This vulnerability is only present in the nscd binary.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The GNU C Library | glibc | 2.15 – < 2.40 | 2.40 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | glibc | 2.37-19 | — |
| Debian 13 | glibc | 2.37-19 | — |
| Debian 12 | glibc | 2.36-9+deb12u7 | DSA-5678-1 |
| Debian 11 | glibc | 2.31-13+deb11u10 | DSA-5678-1 |
| Debian 10 | glibc | 2.28-10+deb10u4 | DLA-3850-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | glibc | 2.39-0ubuntu8.2 | USN-6804-1 |
| Ubuntu 22.04 LTS | glibc | 2.35-0ubuntu3.8 | USN-6804-1 |
| Ubuntu 20.04 LTS | glibc | 2.31-0ubuntu9.16 | USN-6804-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | glibc | 2.27-3ubuntu1.6+esm3 | USN-6804-1 |
| Ubuntu Pro 16.04 LTS | glibc | 2.23-0ubuntu11.3+esm7 | USN-6804-1 |
| Ubuntu Pro 14.04 LTS | eglibc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | nscd +214 | 2.34-100.el9_4.2 | RHSA-2024:3339 |
| RHEL 8 | nscd +213 | 2.28-251.el8_10.2 | RHSA-2024:3344 |
| RHEL 7 | nscd +7 | 2.17-326.el7_9.3 | RHSA-2024:3588 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Rhev Hypervisor 4 | glibc-devel +1 | 2.28-189.10.el8_6 | RHSA-2024:2799 |
| RHEL 9.2 EUS | nscd +214 | 2.34-60.el9_2.14 | RHSA-2024:3411 |
| RHEL 9.0 EUS | nscd +214 | 2.34-28.el9_0.6 | RHSA-2024:3423 |
| RHEL 8.8 EUS | nscd +213 | 2.28-225.el8_8.11 | RHSA-2024:3312 |
| RHEL 8.6 EUS | nscd +213 | 2.28-189.10.el8_6 | RHSA-2024:2799 |
| RHEL 8.4 TUS | glibc-utils +2 | 2.28-151.el8_4.2 | RHSA-2024:3309 |
| RHEL 8.4 E4S | glibc +180 | 2.28-151.el8_4.2 | RHSA-2024:3309 |
| RHEL 8.4 AUS | nscd +208 | 2.28-151.el8_4.2 | RHSA-2024:3309 |
| RHEL 8.2 AUS | nscd +208 | 2.28-101.el8_2.2 | RHSA-2024:3464 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | nscd +214 | 2.34-100.el9_4.2 | ALSA-2024:3339 |
| AlmaLinux 8 | nscd +213 | 2.28-251.el8_10.2 | ALSA-2024:3344 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | glibc | 2.34-100.el9_4.2 | RLSA-2024:3339 |
| Rocky Linux 8 | glibc | 2.28-251.el8_10.2 | RLSA-2024:3344 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP5 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLES 15 SP4 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLES 15 SP3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLES 15 SP2 | glibc | 2.26-150000.13.73.1 | SUSE-SU-2024:1977-1 |
| SLES 12 SP5 | glibc | 2.22-114.34.1 | SUSE-SU-2024:1675-1 |
Show 16 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLES for SAP 15 SP3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLES for SAP 15 SP2 | glibc | 2.26-150000.13.73.1 | SUSE-SU-2024:1977-1 |
| SLES for SAP 12 SP5 | glibc | 2.22-114.34.1 | SUSE-SU-2024:1675-1 |
| SLE Micro 6.0 | glibc | 2.38-7.1 | SUSE-SU-2025:20038-1 |
| SLE Micro 5.5 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-2, SUSE-SU-2024:1895-1 |
| SLE Micro 5.4 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE Micro 5.3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE Micro 5.2 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE Micro 5.1 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE HPC 15 SP4 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE HPC 15 SP3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SLE HPC 15 SP2 | glibc | 2.26-150000.13.73.1 | SUSE-SU-2024:1977-1 |
| SUSE Manager Server 4.3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SUSE Manager Proxy 4.3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| SUSE Enterprise Storage 7.1 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.39-7.1 | openSUSE-SU-2024:13991-1 |
| openSUSE Leap 15.5 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap Micro 5.4 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
| openSUSE Leap Micro 5.3 | glibc | 2.31-150300.83.1 | SUSE-SU-2024:1895-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nscd +217 | 2.34-181.amzn2023.0.1 | ALAS2023-2025-988 |
| Amazon Linux 2 | nscd +199 | 2.26-64.amzn2.0.3 | ALAS2-2024-2718 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | glibc | 2.38-11 | — |
| Azure Linux 2 (CBL-Mariner) | glibc | 2.35-7 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | nscd +214 | 2.34-100.0.1.el9_4.2 | ELSA-2024-3339 |
| Oracle Linux 8 | nscd +213 | 2.28-251.0.2.el8_10.2 | ELSA-2024-3344 |
| Oracle Linux 7 | nscd +6 | 2.17-326.0.9.el7_9.3 | ELSA-2024-3588 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | glibc | 2.39-r5 | — |
Advisories 37
- ALSA-2024:3339 Important: glibc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:3344 Important: glibc security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:3588 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3464 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3423 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3411 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3339 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3312 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:3309 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- RHSA-2024:2799 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Oct 15, 2026
- SSA-082556 SSA-082556: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP V3.1.5 Siemens ProductCERT · Oct 13, 2026
- WID-SEC-2024-0974 GNU libc: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Sep 1, 2026
- RHSA-2024:3344 Red Hat Security Advisory: glibc security update Red Hat Security Advisories (RHSA) · Aug 18, 2026
- USN-6804-1 glibc vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- ICSA-25-162-05 Siemens SIMATIC S7-1500 CPU family CISA ICS & IT advisories · May 14, 2026
- WID-SEC-2024-1226 Red Hat OpenShift: Mehrere Schwachstellen BSI CERT-Bund (WID) · May 11, 2026
- SUSE-SU-2025:20038-1 Security update for glibc SUSE / openSUSE Security Updates · Mar 23, 2026
- DSA-5678-1 glibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-3850-1 glibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:3339 Important: glibc security update Rocky Linux Security Advisories · Feb 5, 2026
- RLSA-2024:3344 Important: glibc security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:1977-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1675-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1895-2 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:1895-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:13991-1 glibc-2.39-7.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-0225 Dell PowerProtect Data Domain: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 1, 2025
- WID-SEC-2025-0794 Juniper Junos Space: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 4, 2025
- NCSC-2025-0187 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Jun 10, 2025
- ALAS2023-2025-988 Moderate: glibc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 2, 2025
- WID-SEC-2024-1307 Red Hat OpenShift Service Mesh Containers: Mehrere Schwachstellen BSI CERT-Bund (WID) · Feb 5, 2025
- NCSC-2025-0021 Kwetsbaarheden verholpen in Oracle Communications NCSC-NL (Netherlands) · Jan 22, 2025
- NCSC-2025-0020 Kwetsbaarheden verholpen in Oracle Database producten NCSC-NL (Netherlands) · Jan 22, 2025
- ALAS2-2024-2718 Moderate: glibc security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Dec 19, 2024
- ELSA-2024-3588 Important: glibc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 5, 2024
- ELSA-2024-3339 Important: glibc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · May 29, 2024
- ELSA-2024-3344 Important: glibc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 29, 2024