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Fencer Intel
high 8.8

CVE-2014-4607 json

Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers t…

published 2020-02-12 6 y ago modified 2026-06-17 4 mo ago also EUVD-2014-4534

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.5%
EPSS 5.5% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

Integer overflow in the LZO algorithm variant in Oberhumer liblzo2 and lzo-2 before 2.07 on 32-bit platforms might allow remote attackers to execute arbitrary code via a crafted Literal Run.

Patch / fix

  • oberhumer liblzo2 2.07
  • oberhumer lzo2 2.07
  • lzo2 Debian 14, Debian 13, Debian 12 2.08-1
  • busybox Debian 14, Debian 13, Debian 12 1:1.22.0-10

debian advisories DEBIAN-CVE-2014-4607

  • krfb Ubuntu 14.04 LTS 4:4.13.0-0ubuntu1.1
  • lzo2 Ubuntu 14.04 LTS 2.06-1.2ubuntu1.1
  • grub2 Ubuntu 20.04 LTS 2.04-1ubuntu26.8
  • grub2-signed Ubuntu 20.04 LTS 1.142.10
  • grub2-unsigned Ubuntu 20.04 LTS 2.04-1ubuntu47.4

ubuntu advisories UBUNTU-CVE-2014-4607

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

  • lzo RHEL 6 2.03-3.1.el6_5.1
  • lzo RHEL 7 2.06-6.el7_0.2
  • lzo-minilzo RHEL 6 2.03-3.1.el6_5.1
  • lzo-minilzo RHEL 7 2.06-6.el7_0.2

red hat advisories RHSA-2014:0861

  • icecream openSUSE Tumbleweed 1.3.1-3.7
  • nfdump openSUSE Tumbleweed 1.6.23-1.3

opensuse advisories openSUSE-SU-2024:10854-1openSUSE-SU-2024:11089-1

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-2014-4607 updated cvss 5.1

lzo: lzo1x_decompress_safe() integer overflow

  • Red Hat Enterprise Linux 5 dump, busybox Red Hat Enterprise Linux 6 rmt, dump, busybox, busybox-petitboot
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 rmt, dump, grub2, grub2-pc, grub2-efi, grub2-ppc64, +17 more
    affected: no fix available, no fix planned “Will not fix”
  • Red Hat Enterprise Linux 6 kdenetwork, kdenetwork-libs Red Hat Enterprise Linux 7 kdenetwork, kdenetwork-kget, kdenetwork-krdc, kdenetwork-krfb, kdenetwork-common, kdenetwork-kdnssd, +6 more
    under investigation
  • Red Hat Enterprise Linux Client (v. 7) lzo 2.06-6.el7_0.2, lzo-minilzo 2.06-6.el7_0.2 Red Hat Enterprise Linux Client Optional (v. 7) lzo-devel 2.06-6.el7_0.2, lzo-debuginfo 2.06-6.el7_0.2 Red Hat Enterprise Linux ComputeNode (v. 7) lzo 2.06-6.el7_0.2 Red Hat Enterprise Linux ComputeNode Optional (v. 7) lzo-minilzo 2.06-6.el7_0.2 Red Hat Enterprise Linux Desktop (v. 6) lzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Desktop Optional (v. 6) lzo 2.03-3.1.el6_5.1, lzo-minilzo 2.03-3.1.el6_5.1
    +10 more products
    Red Hat Enterprise Linux HPC Node (v. 6) lzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) lzo 2.03-3.1.el6_5.1, lzo-minilzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Server (v. 6) lzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Server (v. 7) lzo 2.06-6.el7_0.2, lzo-minilzo 2.06-6.el7_0.2 Red Hat Enterprise Linux Server Optional (v. 6) lzo 2.03-3.1.el6_5.1, lzo-minilzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Server Optional (v. 7) lzo-minilzo 2.06-6.el7_0.2 Red Hat Enterprise Linux Workstation (v. 6) lzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Workstation (v. 7) lzo 2.06-6.el7_0.2, lzo-minilzo 2.06-6.el7_0.2 Red Hat Enterprise Linux Workstation Optional (v. 6) lzo 2.03-3.1.el6_5.1, lzo-minilzo 2.03-3.1.el6_5.1 Red Hat Enterprise Linux Workstation Optional (v. 7) lzo-devel 2.06-6.el7_0.2, lzo-debuginfo 2.06-6.el7_0.2
    fixed: vendor fix RHSA-2014:0861
  • Red Hat Enterprise Linux 5 gnutls
    not affected: vulnerable code not present

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

5.53% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • blog.securitymouse.com http://blog.securitymouse.com/2014/06/raising-lazarus-20-year-old-bug-that.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

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.