ALBA-2021:0556
glibc bug fix and enhancement update
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.
Bug Fix(es) and Enhancement(s):
-
glibc: Transaction ID collisions cause slow DNS lookups in getaddrinfo (BZ#1904153)
-
glibc: memcpy calls are slower for AMD processors on AlmaLinux 8 than AlmaLinux 7 (BZ#1913750)
What each source reports
OSV No score
glibc bug fix and enhancement update
The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.
Bug Fix(es) and Enhancement(s):
-
glibc: Transaction ID collisions cause slow DNS lookups in getaddrinfo (BZ#1904153)
-
glibc: memcpy calls are slower for AMD processors on AlmaLinux 8 than AlmaLinux 7 (BZ#1913750)
- Record
ALBA-2021:0556- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
glibc-benchtestsAlmaLinux:8 |
before 2.28-127.el8_3.2 | 2.28-127.el8_3.2 |
glibc-nss-develAlmaLinux:8 |
before 2.28-127.el8_3.2 | 2.28-127.el8_3.2 |
glibc-staticAlmaLinux:8 |
before 2.28-127.el8_3.2 | 2.28-127.el8_3.2 |
nss_hesiodAlmaLinux:8 |
before 2.28-127.el8_3.2 | 2.28-127.el8_3.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
ALBA-2021:0556 is a vulnerability with no CVSS score yet in glibc-benchtests, published February 16, 2021. No source lists public exploit code. Fixed in glibc-benchtests 2.28-127.el8_3.2.