Description
Stack-based buffer overflow in the nss_dns implementation of the getnetbyname function in GNU C Library (aka glibc) before 2.24 allows context-dependent attackers to cause a denial of service (stack consumption and application crash) via a long name.
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 | 2.22-6 | — |
| Debian 13 | glibc | 2.22-6 | — |
| Debian 12 | glibc | 2.22-6 | — |
| Debian 7 | eglibc | 2.13-38+deb7u11 | DLA-494-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | eglibc | 2.19-0ubuntu6.8 | USN-2985-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | nscd +7 | 2.17-157.el7 | RHSA-2016:2573 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | glibc | 2.19-38.2 | SUSE-SU-2016:1733-1 |
| SLES 12 | glibc | 2.19-22.16.2 | SUSE-SU-2016:1721-1 |
| SLES 11 SP4 | glibc | 2.11.3-17.102.1 | SUSE-SU-2016:2156-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | glibc | 2.19-38.2 | SUSE-SU-2016:1733-1 |
| SLES for SAP 12 | glibc | 2.19-22.16.2 | SUSE-SU-2016:1721-1 |
| SLES for SAP 11 SP4 | glibc | 2.11.3-17.102.1 | SUSE-SU-2016:2156-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | glibc | 2.24-2.3 | openSUSE-SU-2024:10154-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | nscd +6 | 2.17-157.el7 | ELSA-2016-2573 |
Advisories 8
- RHSA-2016:2573 Red Hat Security Advisory: glibc security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- USN-2985-1 eglibc, glibc vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-494-1 eglibc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10154-1 glibc-2.24-2.3 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1721-1 Security update for glibc SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2016:1733-1 Security update for glibc SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2016:2156-1 Security update for glibc SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2016-2573 Low: glibc security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 9, 2016
References
- FEDORA-2016-68abc0be35 vendor-advisory
- openSUSE-SU-2016:1779 vendor-advisory
- 85732 vdb-entry
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=317b199b4aff8cfa27f2302ab404d2bb5032b9a4
- GLSA-201702-11 vendor-advisory
- RHSA-2016:2573 vendor-advisory
- openSUSE-SU-2016:1527 vendor-advisory
- USN-2985-1 vendor-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=19879