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Fencer Vulns
medium 4.7

CVE-2007-3739 json

mm/mmap.c in the hugetlb kernel, when run on PowerPC systems, does not prevent stack expansion from entering into reserved kernel page memo…

published 2007-09-14 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-3723

cvss
4.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 31%
public exploits
0
none known

Summary

mm/mmap.c in the hugetlb kernel, when run on PowerPC systems, does not prevent stack expansion from entering into reserved kernel page memory, which allows local users to cause a denial of service (OOPS) via unspecified vectors.

Patch / fix

  • kernel RHEL 3 2.4.21-53.EL
  • kernel-smp RHEL 3 2.4.21-53.EL
  • kernel-BOOT RHEL 3 2.4.21-53.EL
  • kernel-source RHEL 3 2.4.21-53.EL
  • kernel-hugemem RHEL 3 2.4.21-53.EL
  • kernel-unsupported RHEL 3 2.4.21-53.EL
  • kernel-smp-unsupported RHEL 3 2.4.21-53.EL
  • kernel-hugemem-unsupported RHEL 3 2.4.21-53.EL

red hat advisories RHSA-2007:1049RHSA-2007:0939RHSA-2007:0705

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-3739 updated

LTC36188-Don't allow the stack to grow into hugetlb reserved regions

  • Red Hat Desktop version 3 kernel 2.4.21-53.EL, kernel-smp 2.4.21-53.EL, kernel-BOOT 2.4.21-53.EL, kernel-source 2.4.21-53.EL, kernel-hugemem 2.4.21-53.EL, kernel-unsupported 2.4.21-53.EL, +2 more
    fixed: vendor fix RHSA-2007:1049
  • Red Hat Enterprise Linux (v. 5 server) kernel 2.6.18-8.1.10.el5, kernel-PAE 2.6.18-8.1.10.el5, kernel-xen 2.6.18-8.1.10.el5, kernel-kdump 2.6.18-8.1.10.el5, kernel-debuginfo-common 2.6.18-8.1.10.el5
    fixed: vendor fix RHSA-2007:0705
  • Red Hat Enterprise Linux AS version 3 kernel 2.4.21-53.EL, kernel-smp 2.4.21-53.EL, kernel-BOOT 2.4.21-53.EL, kernel-source 2.4.21-53.EL, kernel-hugemem 2.4.21-53.EL, kernel-unsupported 2.4.21-53.EL, +2 more
    fixed: vendor fix RHSA-2007:1049
  • Red Hat Enterprise Linux AS version 4 kernel 2.6.9-55.0.12.EL, kernel-smp 2.6.9-55.0.12.EL, kernel-xenU 2.6.9-55.0.12.EL, kernel-hugemem 2.6.9-55.0.12.EL, kernel-largesmp 2.6.9-55.0.12.EL
    fixed: vendor fix RHSA-2007:0939
  • Red Hat Enterprise Linux Desktop (v. 5 client) kernel 2.6.18-8.1.10.el5, kernel-PAE 2.6.18-8.1.10.el5, kernel-xen 2.6.18-8.1.10.el5, kernel-kdump 2.6.18-8.1.10.el5, kernel-debuginfo-common 2.6.18-8.1.10.el5
    fixed: vendor fix RHSA-2007:0705
  • Red Hat Enterprise Linux Desktop version 4 kernel 2.6.9-55.0.12.EL, kernel-smp 2.6.9-55.0.12.EL, kernel-xenU 2.6.9-55.0.12.EL, kernel-hugemem 2.6.9-55.0.12.EL, kernel-largesmp 2.6.9-55.0.12.EL
    fixed: vendor fix RHSA-2007:0939
  • Red Hat Enterprise Linux ES version 3 kernel 2.4.21-53.EL, kernel-smp 2.4.21-53.EL, kernel-BOOT 2.4.21-53.EL, kernel-source 2.4.21-53.EL, kernel-hugemem 2.4.21-53.EL, kernel-unsupported 2.4.21-53.EL, +2 more
    fixed: vendor fix RHSA-2007:1049
  • Red Hat Enterprise Linux ES version 4 kernel 2.6.9-55.0.12.EL, kernel-smp 2.6.9-55.0.12.EL, kernel-xenU 2.6.9-55.0.12.EL, kernel-hugemem 2.6.9-55.0.12.EL, kernel-largesmp 2.6.9-55.0.12.EL
    fixed: vendor fix RHSA-2007:0939
show 2 more
  • Red Hat Enterprise Linux WS version 3 kernel 2.4.21-53.EL, kernel-smp 2.4.21-53.EL, kernel-BOOT 2.4.21-53.EL, kernel-source 2.4.21-53.EL, kernel-hugemem 2.4.21-53.EL, kernel-unsupported 2.4.21-53.EL, +2 more
    fixed: vendor fix RHSA-2007:1049
  • Red Hat Enterprise Linux WS version 4 kernel 2.6.9-55.0.12.EL, kernel-smp 2.6.9-55.0.12.EL, kernel-xenU 2.6.9-55.0.12.EL, kernel-hugemem 2.6.9-55.0.12.EL, kernel-largesmp 2.6.9-55.0.12.EL
    fixed: vendor fix RHSA-2007:0939

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 31% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.