RHSA-2024:3588 - Security Advisory

Topic

An update for glibc is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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: Out of bounds write in iconv may lead to remote code execution

(CVE-2024-2961)

• 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.

Solution

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 2273404 - CVE-2024-2961 glibc: Out of bounds write in iconv may lead to remote code execution
• BZ - 2277202 - CVE-2024-33599 glibc: stack-based buffer overflow in netgroup cache
• BZ - 2277204 - CVE-2024-33600 glibc: null pointer dereferences after failed netgroup cache insertion
• BZ - 2277205 - CVE-2024-33601 glibc: netgroup cache may terminate daemon on memory allocation failure
• BZ - 2277206 - CVE-2024-33602 glibc: netgroup cache assumes NSS callback uses in-buffer strings

CVEs

• CVE-2024-2961
• CVE-2024-33599
• CVE-2024-33600
• CVE-2024-33601
• CVE-2024-33602

References

• https://access.redhat.com/security/updates/classification/#important