A Chromium security update has been released for Ubuntu Linux 18.04 LTS.

USN-5949-1: Chromium vulnerabilities

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Ubuntu Security Notice USN-5949-1
March 13, 2023

chromium-browser vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in Chromium.

Software Description:
- chromium-browser: Chromium web browser, open-source version of Chrome

Details:

It was discovered that Chromium could be made to write out of bounds in
several components. A remote attacker could possibly use this issue to
corrupt memory via a crafted HTML page, resulting in a denial of service,
or possibly execute arbitrary code. (CVE-2023-0930, CVE-2023-1219,
CVE-2023-1220, CVE-2023-1222)

It was discovered that Chromium contained an integer overflow in the PDF
component. A remote attacker could possibly use this issue to corrupt
memory via a crafted PDF file, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2023-0933)

It was discovered that Chromium did not properly manage memory in several
components. A remote attacker could possibly use this issue to corrupt
memory via a crafted HTML page, resulting in a denial of service, or
possibly execute arbitrary code. (CVE-2023-0941, CVE-2023-0928,
CVE-2023-0929, CVE-2023-0931, CVE-2023-1213, CVE-2023-1216, CVE-2023-1218)

It was discovered that Chromium did not correctly distinguish data types
in several components. A remote attacker could possibly use this issue to
corrupt memory via a crafted HTML page, resulting in a denial of service,
or possibly execute arbitrary code. (CVE-2023-1214, CVE-2023-1215,
CVE-2023-1235)

It was discovered that Chromium insufficiently enforced policies. An
attacker could possibly use this issue to bypass navigation restrictions.
(CVE-2023-1221, CVE-2023-1224)

It was discovered that Chromium insufficiently enforced policies in Web
Payments API. A remote attacker could possibly use this issue to bypass
content security policy via a crafted HTML page. (CVE-2023-1226)

It was discovered that Chromium contained an inappropriate implementation
in the Permission prompts component. A remote attacker could possibly use
this issue to bypass navigation restrictions via a crafted HTML page.
(CVE-2023-1229)

It was discovered that Chromium insufficiently enforced policies in
Resource Timing component. A remote attacker could possibly use this issue
to obtain sensitive information. (CVE-2023-1232, CVE-2023-1233)

It was discovered that Chromium contained an inappropriate implementation
in the Internals component. A remote attacker could possibly use this
issue to spoof the origin of an iframe via a crafted HTML page.
(CVE-2023-1236)

Update instructions:

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

Ubuntu 18.04 LTS:
chromium-browser 111.0.5563.64-0ubuntu0.18.04.5

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References:
https://ubuntu.com/security/notices/USN-5949-1
CVE-2023-0928, CVE-2023-0929, CVE-2023-0930, CVE-2023-0931,
CVE-2023-0933, CVE-2023-0941, CVE-2023-1213, CVE-2023-1214,
CVE-2023-1215, CVE-2023-1216, CVE-2023-1218, CVE-2023-1219,
CVE-2023-1220, CVE-2023-1221, CVE-2023-1222, CVE-2023-1224,
CVE-2023-1226, CVE-2023-1229, CVE-2023-1232, CVE-2023-1233,
CVE-2023-1235, CVE-2023-1236

Package Information:
https://launchpad.net/ubuntu/+source/chromium-browser/111.0.5563.64-0ubuntu0.18.04.5