Read the docs
TI-2024-22188 Aliases CVE-2024-33601GHSA-f4cf-2w52-c853

Reachable assertion in GNU glibc

Priority MEDIUM 40CWE-617Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Partial Red Hat: 35 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-617.

Summary

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 service to the clients. The flaw was introduced in glibc 2.15 when the cache was added to nscd. This vulnerability is only present in the nscd binary.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01075 65th percentileScored 2026-11-07
Fix Partial glibc (The GNU C Library): 2.40Red Hat: 10 advisoriesRed Hat: 35 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GNUglibc2.15 to before 2.402.40Patch availableCNA
  • glibc VendorGNU Affected 2.15 to before 2.40 Fixed in 2.40 Patch available CNA

CPE configurations NVD · 20

CPEVersionsRoleVendor
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*2.15 to before 2.40VulnerableGNU
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* Versions 2.15 to before 2.40 Vulnerable ·GNU
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
Show 10 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
  • cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h610c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h615c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h610s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:hci_bootstrap_os:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:hci_compute_node:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp

Remediation

  • Fix · CNA glibc (The GNU C Library) Fixed in 2.40

Red Hat 10 advisories

  • RHSA-2024:4126 Released 2024-06-26 · Red Hat rating Important
    Red Hat Service Interconnect 1.4.5 Release security update
    • 9Base-Service-Interconnect-1.4 service-interconnect/skupper-config-sync-rhel9, service-interconnect/skupper-flow-collector-rhel9, service-interconnect/skupper-operator-bundle +3
  • RHSA-2024:3588 Released 2024-06-04 · Red Hat rating Important
    glibc security update
    • Red Hat Enterprise Linux Client (v. 7) glibc-2.17-326.el7_9.3, glibc-common-2.17-326.el7_9.3, glibc-devel-2.17-326.el7_9.3 +3
    • Red Hat Enterprise Linux Client Optional (v. 7) glibc-static-2.17-326.el7_9.3
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-static-2.17-326.el7_9.3
    • Red Hat Enterprise Linux Server (v. 7) glibc-2.17-326.el7_9.3, glibc-2.17-326.el7_9.3.ppc, glibc-common-2.17-326.el7_9.3 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) glibc-static-2.17-326.el7_9.3, glibc-static-2.17-326.el7_9.3.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) glibc-2.17-326.el7_9.3, glibc-common-2.17-326.el7_9.3, glibc-devel-2.17-326.el7_9.3 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-static-2.17-326.el7_9.3
  • RHSA-2024:3464 Released 2024-05-29 · Red Hat rating Important
    glibc security update
    • Red Hat Enterprise Linux AppStream AUS (v. 8.2) compat-libpthread-nonshared-2.28-101.el8_2.2, glibc-utils-2.28-101.el8_2.2
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) glibc-2.28-101.el8_2.2, glibc-all-langpacks-2.28-101.el8_2.2, glibc-common-2.28-101.el8_2.2 +47
Show 7 more Red Hat advisories
  • RHSA-2024:3411 Released 2024-05-28 · Red Hat rating Important
    glibc security update
    • Red Hat CodeReady Linux Builder EUS (v.9.2) glibc-benchtests-2.34-60.el9_2.14, glibc-nss-devel-2.34-60.el9_2.14, glibc-static-2.34-60.el9_2.14 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.2) glibc-devel-2.34-60.el9_2.14, glibc-doc-2.34-60.el9_2.14, glibc-headers-2.34-60.el9_2.14 +2
    • Red Hat Enterprise Linux BaseOS EUS (v.9.2) glibc-2.34-60.el9_2.14, glibc-all-langpacks-2.34-60.el9_2.14, glibc-common-2.34-60.el9_2.14 +47
  • RHSA-2024:3423 Released 2024-05-28 · Red Hat rating Important
    glibc security update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) glibc-benchtests-2.34-28.el9_0.6, glibc-nss-devel-2.34-28.el9_0.6, glibc-static-2.34-28.el9_0.6 +2
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) glibc-devel-2.34-28.el9_0.6, glibc-doc-2.34-28.el9_0.6, glibc-headers-2.34-28.el9_0.6 +2
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) glibc-2.34-28.el9_0.6, glibc-all-langpacks-2.34-28.el9_0.6, glibc-common-2.34-28.el9_0.6 +47
  • RHSA-2024:3344 Released 2024-05-23 · Red Hat rating Important
    glibc security update
    • Red Hat Enterprise Linux AppStream (v. 8) compat-libpthread-nonshared-2.28-251.el8_10.2, glibc-utils-2.28-251.el8_10.2
    • Red Hat Enterprise Linux BaseOS (v. 8) glibc-2.28-251.el8_10.2, glibc-all-langpacks-2.28-251.el8_10.2, glibc-common-2.28-251.el8_10.2 +47
    • Red Hat Enterprise Linux CRB (v. 8) glibc-benchtests-2.28-251.el8_10.2, glibc-nss-devel-2.28-251.el8_10.2, glibc-static-2.28-251.el8_10.2 +1
  • RHSA-2024:3339 Released 2024-05-23 · Red Hat rating Important
    glibc security update
    • Red Hat Enterprise Linux AppStream (v. 9) glibc-devel-2.34-100.el9_4.2, glibc-doc-2.34-100.el9_4.2, glibc-headers-2.34-100.el9_4.2 +2
    • Red Hat Enterprise Linux BaseOS (v. 9) glibc-2.34-100.el9_4.2, glibc-all-langpacks-2.34-100.el9_4.2, glibc-common-2.34-100.el9_4.2 +47
    • Red Hat Enterprise Linux CRB (v. 9) glibc-benchtests-2.34-100.el9_4.2, glibc-nss-devel-2.34-100.el9_4.2, glibc-static-2.34-100.el9_4.2 +2
  • RHSA-2024:3312 Released 2024-05-23 · Red Hat rating Important
    glibc security update
    • Red Hat CodeReady Linux Builder EUS (v.8.8) glibc-benchtests-2.28-225.el8_8.11, glibc-nss-devel-2.28-225.el8_8.11, glibc-static-2.28-225.el8_8.11 +1
    • Red Hat Enterprise Linux AppStream EUS (v.8.8) compat-libpthread-nonshared-2.28-225.el8_8.11, glibc-utils-2.28-225.el8_8.11
    • Red Hat Enterprise Linux BaseOS EUS (v.8.8) glibc-2.28-225.el8_8.11, glibc-all-langpacks-2.28-225.el8_8.11, glibc-common-2.28-225.el8_8.11 +47
  • RHSA-2024:3309 Released 2024-05-23 · Red Hat rating Important
    glibc security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) compat-libpthread-nonshared-2.28-151.el8_4.2, glibc-utils-2.28-151.el8_4.2
    • Red Hat Enterprise Linux AppStream E4S (v.8.4) compat-libpthread-nonshared-2.28-151.el8_4.2, glibc-utils-2.28-151.el8_4.2
    • Red Hat Enterprise Linux AppStream TUS (v.8.4) compat-libpthread-nonshared-2.28-151.el8_4.2, glibc-utils-2.28-151.el8_4.2
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) glibc-2.28-151.el8_4.2, glibc-all-langpacks-2.28-151.el8_4.2, glibc-common-2.28-151.el8_4.2 +47
    • Red Hat Enterprise Linux BaseOS E4S (v.8.4) glibc-2.28-151.el8_4.2, glibc-all-langpacks-2.28-151.el8_4.2, glibc-common-2.28-151.el8_4.2 +47
    • Red Hat Enterprise Linux BaseOS TUS (v.8.4) glibc-2.28-151.el8_4.2, glibc-all-langpacks-2.28-151.el8_4.2, glibc-common-2.28-151.el8_4.2 +47
  • RHSA-2024:2799 Released 2024-05-09 · Red Hat rating Important
    glibc security update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) glibc-benchtests-2.28-189.10.el8_6, glibc-nss-devel-2.28-189.10.el8_6, glibc-static-2.28-189.10.el8_6 +1
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) compat-libpthread-nonshared-2.28-189.10.el8_6, glibc-utils-2.28-189.10.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) glibc-2.28-189.10.el8_6, glibc-all-langpacks-2.28-189.10.el8_6, glibc-common-2.28-189.10.el8_6 +47
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 glibc-devel-2.28-189.10.el8_6, glibc-headers-2.28-189.10.el8_6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    The GNU C Library glibc 2.40

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2024-22186 Stack-based buffer overflow in GNU glibcPriority LOW 38
    • TI-2024-22189 nscd: netgroup cache assumes NSS callback uses in-buffer stringsPriority LOW 35
    • TI-2024-22187 NULL pointer dereference in GNU glibcPriority LOW 29

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
9Base-Service-Interconnect-1.4Fixed RHSA-2024:4126
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2024:2799
Red Hat CodeReady Linux Builder EUS (v.8.8)Fixed RHSA-2024:3312
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2024:3423
Red Hat CodeReady Linux Builder EUS (v.9.2)Fixed RHSA-2024:3411
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2024:3344
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2024:3339
Red Hat Enterprise Linux AppStream AUS (v. 8.2)Fixed RHSA-2024:3464
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux AppStream E4S (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2024:2799
Red Hat Enterprise Linux AppStream EUS (v.8.8)Fixed RHSA-2024:3312
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2024:3423
Red Hat Enterprise Linux AppStream EUS (v.9.2)Fixed RHSA-2024:3411
Red Hat Enterprise Linux AppStream TUS (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2024:3344
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2024:3339
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2024:3464
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux BaseOS E4S (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2024:2799
Red Hat Enterprise Linux BaseOS EUS (v.8.8)Fixed RHSA-2024:3312
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2024:3423
Red Hat Enterprise Linux BaseOS EUS (v.9.2)Fixed RHSA-2024:3411
Red Hat Enterprise Linux BaseOS TUS (v.8.4)Fixed RHSA-2024:3309
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2024:3344
Red Hat Enterprise Linux CRB (v. 9)Fixed RHSA-2024:3339
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2024:3588
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2024:3588
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2024:2799
Not affected: 7 products
  • Red Hat CodeReady Linux Builder EUS (v.8.6)
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux AppStream EUS (v.8.6)
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6)
  • Red Hat Virtualization 4 Hypervisor for RHEL 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-33601
  2. 2026-10-03 Alias added: GHSA-f4cf-2w52-c853

References

  • TI-2023-04522 Glibc: buffer overflow in ld.so leading to privilege escalation KEVCVSS 3.1HIGH 7.8
  • TI-2015-00205 Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and… CVSS 2.0HIGH 10.0
  • TI-2026-04772 scanf %mc off-by-one heap buffer overflow CVSS 3.1CRITICAL 9.8
  • TI-2022-07360 The deprecated compatibility function clnt_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
  • TI-2022-07359 The deprecated compatibility function svcunix_create in the sunrpc module of the GNU C… CVSS 3.1CRITICAL 9.8
  • TI-2015-06274 Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the… CVSS 3.0HIGH 8.1
See all 162 →

Sources