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CVE-2007-4137

Status Candidate

Overview

Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attackers to cause a denial of service (crash) via a crafted Unicode string that triggers a heap-based buffer overflow. NOTE: Qt 4 has the same error in the QUtf8Codec::convertToUnicode function, but it is not exploitable.

Related Files

Debian Linux Security Advisory 1426-1
Posted Dec 8, 2007
Authored by Debian | Site debian.org

Debian Security Advisory 1426-1 - Several local/remote vulnerabilities have been discovered in the Qt GUI Library.

tags | advisory, remote, local, vulnerability
systems | linux, debian
advisories | CVE-2007-3388, CVE-2007-4137
SHA-256 | 5c082ffb313e5bed2505f52c4b98056b4600ea82437d9d3a9c050d680cc070dd
Gentoo Linux Security Advisory 200710-28
Posted Oct 26, 2007
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory GLSA 200710-28 - Dirk Mueller from the KDE development team discovered a boundary error in file qutfcodec.cpp when processing Unicode strings. Versions less than 3.3.8-r4 are affected.

tags | advisory
systems | linux, gentoo
advisories | CVE-2007-4137
SHA-256 | 3064b95a334a355933c47f52b371d85e9b948c1c8e805666af428180e426fa8c
Ubuntu Security Notice 513-1
Posted Sep 19, 2007
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 513-1 - Dirk Mueller discovered that UTF8 strings could be made to cause a small buffer overflow. A remote attacker could exploit this by sending specially crafted strings to applications that use the Qt3 library for UTF8 processing, potentially leading to arbitrary code execution with user privileges, or a denial of service.

tags | advisory, remote, denial of service, overflow, arbitrary, code execution
systems | linux, ubuntu
advisories | CVE-2007-4137
SHA-256 | 31ffb680b3c4b7429d78be83949e8be8829f2eb22d387a6ff0412229eb5567fd
Mandriva Linux Security Advisory 2007.183
Posted Sep 18, 2007
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory - A buffer overflow was found in how Qt expanded malformed Unicode strings. If an application linked against Qt parsed a malicious Unicode string, it could lead to a denial of service or potentially allow for the execution of arbitrary code.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, mandriva
advisories | CVE-2007-4137
SHA-256 | 38370e2c0205b8aa6182c84849d7a04e1995eb917f2b85613fd5477d546b49be
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