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Fencer Intel
low 3.6

CVE-2013-0254 json

The QSharedMemory class in Qt 5.0.0, 4.8.x before 4.8.5, 4.7.x before 4.7.6, and other versions including 4.4.0 uses weak permissions (worl…

published 13y ago modified 4mo ago also EUVD-2013-0285

cvss
3.6
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 38%
public exploits
0
none known

Summary

The QSharedMemory class in Qt 5.0.0, 4.8.x before 4.8.5, 4.7.x before 4.7.6, and other versions including 4.4.0 uses weak permissions (world-readable and world-writable) for shared memory segments, which allows local users to read sensitive information or modify critical program data, as demonstrated by reading a pixmap being sent to an X server.

Patch / fix

  • qt RHEL 6 1:4.6.2-26.el6_4
  • qt-x11 RHEL 6 1:4.6.2-26.el6_4
  • qt-odbc RHEL 6 1:4.6.2-26.el6_4
  • qt-demos RHEL 6 1:4.6.2-26.el6_4
  • qt-mysql RHEL 6 1:4.6.2-26.el6_4
  • qt-sqlite RHEL 6 1:4.6.2-26.el6_4
  • qt-examples RHEL 6 1:4.6.2-26.el6_4
  • qt-postgresql RHEL 6 1:4.6.2-26.el6_4

red hat advisories RHSA-2013:0669

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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-2013-0254 updated cvss 4.4

qt: QSharedMemory class created shared memory segments with insecure permissions

  • Red Hat Enterprise Linux Desktop (v. 6) qt 4.6.2-26.el6_4, qt-x11 4.6.2-26.el6_4, qt-odbc 4.6.2-26.el6_4, qt-mysql 4.6.2-26.el6_4, qt-sqlite 4.6.2-26.el6_4, qt-postgresql 4.6.2-26.el6_4, +1 more Red Hat Enterprise Linux Desktop Optional (v. 6) qt 4.6.2-26.el6_4, qt-demos 4.6.2-26.el6_4, qt-examples 4.6.2-26.el6_4 Red Hat Enterprise Linux HPC Node (v. 6) qt 4.6.2-26.el6_4, qt-x11 4.6.2-26.el6_4, qt-sqlite 4.6.2-26.el6_4, phonon-backend-gstreamer 4.6.2-26.el6_4 Red Hat Enterprise Linux HPC Node Optional (v. 6) qt 4.6.2-26.el6_4, qt-odbc 4.6.2-26.el6_4, qt-demos 4.6.2-26.el6_4, qt-mysql 4.6.2-26.el6_4, qt-examples 4.6.2-26.el6_4, qt-postgresql 4.6.2-26.el6_4 Red Hat Enterprise Linux Server (v. 6) qt 4.6.2-26.el6_4, qt-x11 4.6.2-26.el6_4, qt-odbc 4.6.2-26.el6_4, qt-mysql 4.6.2-26.el6_4, qt-sqlite 4.6.2-26.el6_4, qt-postgresql 4.6.2-26.el6_4, +1 more Red Hat Enterprise Linux Server Optional (v. 6) qt 4.6.2-26.el6_4, qt-demos 4.6.2-26.el6_4, qt-examples 4.6.2-26.el6_4
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) qt 4.6.2-26.el6_4, qt-x11 4.6.2-26.el6_4, qt-odbc 4.6.2-26.el6_4, qt-mysql 4.6.2-26.el6_4, qt-sqlite 4.6.2-26.el6_4, qt-postgresql 4.6.2-26.el6_4, +1 more Red Hat Enterprise Linux Workstation Optional (v. 6) qt 4.6.2-26.el6_4, qt-demos 4.6.2-26.el6_4, qt-examples 4.6.2-26.el6_4
    fixed: vendor fix RHSA-2013:0669
  • Red Hat Enterprise Linux 5 qt Red Hat Enterprise Linux 6 qt3, qt3-ODBC, qt3-MySQL, qt3-config, qt3-sqlite, qt3-designer, +1 more
    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

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/I:P/A:N

Classification

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

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.