9.3 - USN-2677-1

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.04 - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Oxide.

Software Description: - oxide-qt: Web browser engine library for Qt (QML plugin)

Details:

An uninitialized value issue was discovered in ICU. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2015-1270)

A use-after-free was discovered in the GPU process implementation in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1272)

A use-after-free was discovered in the IndexedDB implementation in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1276)

A use-after-free was discovered in the accessibility implemetation in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1277)

A memory corruption issue was discovered in Skia. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash, or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2015-1280)

It was discovered that Blink did not properly determine the V8 context of a microtask in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass Content Security Policy (CSP) restrictions. (CVE-2015-1281)

Multiple integer overflows were discovered in Expat. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1283)

It was discovered that Blink did not enforce a page's maximum number of frames in some circumstances, resulting in a use-after-free. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via renderer crash, or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2015-1284)

It was discovered that the XSS auditor in Blink did not properly choose a truncation point. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information. (CVE-2015-1285)

An issue was discovered in the CSS implementation in Blink. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to bypass same-origin restrictions. (CVE-2015-1287)

Multiple security issues were discovered in Chromium. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to read uninitialized memory, cause a denial of service via application crash or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1289)

A use-after-free was discovered in oxide::qt::URLRequestDelegatedJob in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking the program. (CVE-2015-1329)

A crash was discovered in the regular expression implementation in V8 in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service. (CVE-2015-5605)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.04:
liboxideqtcore0 1.8.4-0ubuntu0.15.04.1

Ubuntu 14.04 LTS:
liboxideqtcore0 1.8.4-0ubuntu0.14.04.2

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2677-1
CVE-2015-1270, CVE-2015-1272, CVE-2015-1276, CVE-2015-1277,
CVE-2015-1280, CVE-2015-1281, CVE-2015-1283, CVE-2015-1284,
CVE-2015-1285, CVE-2015-1287, CVE-2015-1289, CVE-2015-1329,
CVE-2015-5605, https://launchpad.net/bugs/1466208

Package Information:
https://launchpad.net/ubuntu/+source/oxide-qt/1.8.4-0ubuntu0.15.04.1
https://launchpad.net/ubuntu/+source/oxide-qt/1.8.4-0ubuntu0.14.04.2