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Fencer Intel
medium 5.0

CVE-2015-1593 json

The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise…

published 11y ago modified 4mo ago also EUVD-2015-1724

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.8%
EPSS 3.8% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

The stack randomization feature in the Linux kernel before 3.19.1 on 64-bit platforms uses incorrect data types for the results of bitwise left-shift operations, which makes it easier for attackers to bypass the ASLR protection mechanism by predicting the address of the top of the stack, related to the randomize_stack_top function in fs/binfmt_elf.c and the stack_maxrandom_size function in arch/x86/mm/mmap.c.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.16.7-ckt7-1

debian advisories DEBIAN-CVE-2015-1593

  • linux Ubuntu 14.04 LTS 3.13.0-49.81
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-34.45~14.04.1

ubuntu advisories UBUNTU-CVE-2015-1593

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 8 4.18.0-147.el8
  • perf RHEL 8 4.18.0-147.el8
  • bpftool RHEL 8 4.18.0-147.el8
  • kernel-core RHEL 8 4.18.0-147.el8
  • kernel-tools RHEL 8 4.18.0-147.el8
  • python3-perf RHEL 8 4.18.0-147.el8
  • kernel-modules RHEL 8 4.18.0-147.el8
  • kernel-zfcpdump RHEL 8 4.18.0-147.el8

red hat advisories RHSA-2019:3517RHSA-2015:1221RHSA-2015:1138RHSA-2015:1137RHSA-2015:1139

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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-2015-1593 updated cvss 1.9

kernel: Linux stack ASLR implementation Integer overflow

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more
    affected: no fix available
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-147.el8, kernel-debuginfo-common-aarch64 4.18.0-147.el8, kernel-debuginfo-common-ppc64le 4.18.0-147.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-147.el8, kernel 4.18.0-147.el8, bpftool 4.18.0-147.el8, kernel-core 4.18.0-147.el8, kernel-tools 4.18.0-147.el8, python3-perf 4.18.0-147.el8, +15 more
    fixed: vendor fix RHSA-2019:3517
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-229.7.2.el7, kernel 3.10.0-229.7.2.el7, kernel-tools 3.10.0-229.7.2.el7, kernel-tools-libs 3.10.0-229.7.2.el7, kernel-abi-whitelists 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7 Red Hat Enterprise Linux Client Optional (v. 7) python-perf 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-229.7.2.el7, kernel 3.10.0-229.7.2.el7, kernel-tools 3.10.0-229.7.2.el7, kernel-tools-libs 3.10.0-229.7.2.el7, kernel-abi-whitelists 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-perf 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7
    fixed: vendor fix RHSA-2015:1137
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-504.30.3.el6, kernel 2.6.32-504.30.3.el6, kernel-firmware 2.6.32-504.30.3.el6, kernel-abi-whitelists 2.6.32-504.30.3.el6, kernel-debuginfo-common-i686 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-504.30.3.el6, kernel-debuginfo-common-i686 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-504.30.3.el6, kernel 2.6.32-504.30.3.el6, kernel-firmware 2.6.32-504.30.3.el6, kernel-abi-whitelists 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6
    fixed: vendor fix RHSA-2015:1221
  • Red Hat Enterprise Linux Realtime (v. 7) kernel-rt 3.10.0-229.7.2.rt56.141.6.el7_1, kernel-rt-trace 3.10.0-229.7.2.rt56.141.6.el7_1, kernel-rt-debuginfo-common-x86_64 3.10.0-229.7.2.rt56.141.6.el7_1
    fixed: vendor fix RHSA-2015:1139
  • Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-504.30.3.el6, kernel 2.6.32-504.30.3.el6, kernel-kdump 2.6.32-504.30.3.el6, kernel-firmware 2.6.32-504.30.3.el6, kernel-bootwrapper 2.6.32-504.30.3.el6, kernel-abi-whitelists 2.6.32-504.30.3.el6, +4 more
    fixed: vendor fix RHSA-2015:1221
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-229.7.2.el7, kernel 3.10.0-229.7.2.el7, perf 3.10.0-229.7.2.ael7b, kernel 3.10.0-229.7.2.ael7b, kernel-kdump 3.10.0-229.7.2.el7, kernel-tools 3.10.0-229.7.2.el7, +11 more
    fixed: vendor fix RHSA-2015:1137
  • Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-504.30.3.el6, kernel-debuginfo-common-i686 2.6.32-504.30.3.el6, kernel-debuginfo-common-ppc64 2.6.32-504.30.3.el6, kernel-debuginfo-common-s390x 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6
    fixed: vendor fix RHSA-2015:1221
show 6 more
  • Red Hat Enterprise Linux Server Optional (v. 7) python-perf 3.10.0-229.7.2.el7, python-perf 3.10.0-229.7.2.ael7b, kernel-debuginfo-common-ppc64 3.10.0-229.7.2.el7, kernel-debuginfo-common-s390x 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7, kernel-debuginfo-common-ppc64le 3.10.0-229.7.2.ael7b
    fixed: vendor fix RHSA-2015:1137
  • Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-504.30.3.el6, kernel 2.6.32-504.30.3.el6, kernel-firmware 2.6.32-504.30.3.el6, kernel-abi-whitelists 2.6.32-504.30.3.el6, kernel-debuginfo-common-i686 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6
    fixed: vendor fix RHSA-2015:1221
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-229.7.2.el7, kernel 3.10.0-229.7.2.el7, kernel-tools 3.10.0-229.7.2.el7, kernel-tools-libs 3.10.0-229.7.2.el7, kernel-abi-whitelists 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7
    fixed: vendor fix RHSA-2015:1137
  • Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-504.30.3.el6, kernel-debuginfo-common-i686 2.6.32-504.30.3.el6, kernel-debuginfo-common-x86_64 2.6.32-504.30.3.el6
    fixed: vendor fix RHSA-2015:1221
  • Red Hat Enterprise Linux Workstation Optional (v. 7) python-perf 3.10.0-229.7.2.el7, kernel-debuginfo-common-x86_64 3.10.0-229.7.2.el7
    fixed: vendor fix RHSA-2015:1137
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-229.rt56.153.el6rt, kernel-rt-trace 3.10.0-229.rt56.153.el6rt, kernel-rt-vanilla 3.10.0-229.rt56.153.el6rt, kernel-rt-firmware 3.10.0-229.rt56.153.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-229.rt56.153.el6rt
    fixed: vendor fix RHSA-2015:1138

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

3.81% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/torvalds/linux/commit/4e7c22d447bb6d7e37bfe39ff658486ae78e8d77 referenced PoC, tagged "exploit" by a source, unverified
  • hmarco.org http://hmarco.org/bugs/linux-ASLR-integer-overflow.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls
Technology feeds

References

Sources

Fencer Intel 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.