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OpenAdvisories
High RLSA-2024:3344 4 CVEs

Important: glibc security update

Published Jun 14, 2024 · Updated Feb 4, 2026

Summary

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: stack-based buffer overflow in netgroup cache (CVE-2024-33599)

* glibc: null pointer dereferences after failed netgroup cache insertion
(CVE-2024-33600)

* glibc: netgroup cache may terminate daemon on memory allocation failure
(CVE-2024-33601)

* glibc: netgroup cache assumes NSS callback uses in-buffer strings
(CVE-2024-33602)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 8 glibc 0:2.28-251.el8_10.2

Vulnerabilities 4

  • High 8.1

    nscd: Stack-based buffer overflow in netgroup cache

    nscd: Stack-based buffer overflow in netgroup cache If the Name Service Cache Daemon's (nscd) fixed size cache is exhausted by client requests then a subsequent client request for netgroup data may result in a stack-based buffer overflow. This flaw was introd…

  • High 7.4

    nscd: netgroup cache assumes NSS callback uses in-buffer strings

    nscd: netgroup cache assumes NSS callback uses in-buffer strings The Name Service Cache Daemon's (nscd) netgroup cache can corrupt memory when the NSS callback does not store all strings in the provided buffer. The flaw was introduced in glibc 2.15 when the c…

  • High 7.3

    nscd: netgroup cache may terminate daemon on memory allocation failure

    nscd: netgroup cache may terminate daemon on memory allocation failure The Name Service Cache Daemon's (nscd) netgroup cache uses xmalloc or xrealloc and these functions may terminate the process due to a memory allocation failure resulting in a denial of ser…

  • Medium 5.9

    nscd: Null pointer crashes after notfound response

    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 whe…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2277202
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2277204
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2277205
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2277206