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Fencer Intel
critical 9.3

CVE-2011-3194 json

Buffer overflow in the TIFF reader in gui/image/qtiffhandler.cpp in Qt 4.7.4 allows remote attackers to cause a denial of service (crash) a…

published 2012-06-16 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-3158

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.9%
EPSS 6.9% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Buffer overflow in the TIFF reader in gui/image/qtiffhandler.cpp in Qt 4.7.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via the TIFFTAG_SAMPLESPERPIXEL tag in a greyscale TIFF image with multiple samples per pixel.

Patch / fix

  • qt RHEL 6 1:4.6.2-20.el6
  • qt-x11 RHEL 6 1:4.6.2-20.el6
  • qt-odbc RHEL 6 1:4.6.2-20.el6
  • qt-demos RHEL 6 1:4.6.2-20.el6
  • qt-mysql RHEL 6 1:4.6.2-20.el6
  • qt-sqlite RHEL 6 1:4.6.2-20.el6
  • qt-examples RHEL 6 1:4.6.2-20.el6
  • qt-postgresql RHEL 6 1:4.6.2-20.el6

red hat advisories RHSA-2011:1328RHSA-2011:1323

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-2011-3194 updated cvss 5.1

qt buffer overflow in greyscale images

  • Red Hat Enterprise Linux Desktop (v. 6) qt 4.6.2-20.el6, qt-x11 4.6.2-20.el6, qt-odbc 4.6.2-20.el6, qt-mysql 4.6.2-20.el6, qt-sqlite 4.6.2-20.el6, qt-postgresql 4.6.2-20.el6, +1 more Red Hat Enterprise Linux Desktop Optional (v. 6) qt 4.6.2-20.el6, qt-demos 4.6.2-20.el6, qt-examples 4.6.2-20.el6 Red Hat Enterprise Linux HPC Node (v. 6) qt 4.6.2-20.el6, qt-x11 4.6.2-20.el6, qt-sqlite 4.6.2-20.el6, phonon-backend-gstreamer 4.6.2-20.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) qt 4.6.2-20.el6, qt-x11 4.6.2-20.el6, qt-odbc 4.6.2-20.el6, qt-demos 4.6.2-20.el6, qt-mysql 4.6.2-20.el6, qt-sqlite 4.6.2-20.el6, +3 more Red Hat Enterprise Linux Server (v. 6) qt 4.6.2-20.el6, qt 4.6.2-17.el6_1.1, qt-x11 4.6.2-20.el6, qt-odbc 4.6.2-20.el6, qt-mysql 4.6.2-20.el6, qt-sqlite 4.6.2-20.el6, +8 more Red Hat Enterprise Linux Server Optional (v. 6) qt 4.6.2-20.el6, qt 4.6.2-17.el6_1.1, qt-demos 4.6.2-20.el6, qt-examples 4.6.2-20.el6, qt-demos 4.6.2-17.el6_1.1, qt-examples 4.6.2-17.el6_1.1
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) qt 4.6.2-20.el6, qt-x11 4.6.2-20.el6, qt-odbc 4.6.2-20.el6, qt-mysql 4.6.2-20.el6, qt-sqlite 4.6.2-20.el6, qt-postgresql 4.6.2-20.el6, +1 more Red Hat Enterprise Linux Workstation Optional (v. 6) qt 4.6.2-20.el6, qt-demos 4.6.2-20.el6, qt-examples 4.6.2-20.el6
    fixed: vendor fix RHSA-2011:1328
  • Red Hat Enterprise Linux 4 qt Red Hat Enterprise Linux 5 qt, qt4 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

6.87% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.