RLSA-2026:20597
- Source
- https://errata.rockylinux.org/RLSA-2026:20597
- Import Source
- https://storage.googleapis.com/resf-osv-data/RLSA-2026:20597.json
- JSON Data
- https://api.osv.dev/v1/vulns/RLSA-2026:20597
- Upstream
- Published
- 2026-05-30T18:03:01.190443Z
- Modified
- 2026-05-30T18:25:44.008547159Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
- Summary
- Moderate: glibc security update
- Details
-
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.
Security Fix(es):
glibc: glibc: Incorrect DNS response parsing via crafted DNS server response (CVE-2026-4437)
glibc: glibc: Invalid DNS hostname returned via gethostbyaddr functions (CVE-2026-4438)
glibc: glibc: Denial of Service via iconv() function with specific character sets (CVE-2026-4046)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
- References
- Credits
-
-
- Rocky Enterprise Software Foundation
-
- Red Hat
-
Affected packages
Rocky Linux:9 / glibc
Package
- Name
- glibc
- Purl
- pkg:rpm/rocky-linux/glibc?distro=rocky-linux-9&epoch=0