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Ubuntu Security Notice USN-5523-2

Ubuntu Security Notice USN-5523-2
Posted Sep 12, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5523-2 - USN-5523-1 fixed several vulnerabilities in LibTIFF. This update provides the fixes for CVE-2022-0907, CVE-2022-0908, CVE-2022-0909, CVE-2022-0924 and CVE-2022-22844 for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. It was discovered that LibTIFF was not properly performing checks to guarantee that allocated memory space existed, which could lead to a NULL pointer dereference via a specially crafted file. An attacker could possibly use this issue to cause a denial of service.

tags | advisory, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2020-19131, CVE-2020-19144, CVE-2022-0907, CVE-2022-0909, CVE-2022-0924, CVE-2022-22844
SHA-256 | 81521516cda0735954a55daae6fa0943100b2d94e68820e6f180b476c570ccaf

Ubuntu Security Notice USN-5523-2

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-5523-2
September 12, 2022

tiff vulnerabilities
==========================================================================

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

- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in LibTIFF.

Software Description:
- tiff: Tag Image File Format (TIFF) library

Details:

USN-5523-1 fixed several vulnerabilities in LibTIFF. This update
provides the fixes for CVE-2022-0907, CVE-2022-0908, CVE-2022-0909,
CVE-2022-0924 and CVE-2022-22844 for Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that LibTIFF was not properly perf orming checks to
guarantee that allocated memory space existed, which could lead to a
NULL pointer dereference via a specially crafted file. An attacker
could possibly use this issue to cause a denial of service.
(CVE-2022-0907, CVE-2022-0908)

It was discovered that LibTIFF was not properly performing checks to
avoid division calculations where the denominator value was zero,
which could lead to an undefined behavior situation via a specially
crafted file. An attacker could possibly use this issue to cause a
denial of service. (CVE-2022-0909)

It was discovered that LibTIFF was not properly performing bounds
checks, which could lead to an out-of-bounds read via a specially
crafted file. An attacker could possibly use this issue to cause a
denial of service or to expose sensitive information. (CVE-2022-0924)

It was discovered that LibTIFF was not properly performing the
calculation of data that would eventually be used as a reference for
bounds checking operations, which could lead to an out-of-bounds
read via a specially crafted file. An attacker could possibly use
this issue to cause a denial of service or to expose sensitive
information. (CVE-2020-19131)

It was discovered that LibTIFF was not properly terminating a
function execution when processing incorrect data, which could lead
to an out-of-bounds read via a specially crafted file. An attacker
could possibly use this issue to cause a denial of service or to
expose sensitive information. (CVE-2020-19144)

It was discovered that LibTIFF was not properly performing checks
when setting the value for data later used as reference during memory
access, which could lead to an out-of-bounds read via a specially
crafted file. An attacker could possibly use this issue to cause a
denial of service or to expose sensitive information.
(CVE-2022-22844)

Update instructions:

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

Ubuntu 20.04 LTS:
libtiff-opengl 4.1.0+git191117-2ubuntu0.20.04.4
libtiff-tools 4.1.0+git191117-2ubuntu0.20.04.4
libtiff5 4.1.0+git191117-2ubuntu0.20.04.4
libtiffxx5 4.1.0+git191117-2ubuntu0.20.04.4

Ubuntu 18.04 LTS:
libtiff-opengl 4.0.9-5ubuntu0.6
libtiff-tools 4.0.9-5ubuntu0.6
libtiff5 4.0.9-5ubuntu0.6
libtiffxx5 4.0.9-5ubuntu0.6

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

References:
https://ubuntu.com/security/notices/USN-5523-2
https://ubuntu.com/security/notices/USN-5523-1
CVE-2022-0907, CVE-2022-0908, CVE-2022-0909, CVE-2022-0924,
CVE-2022-22844

Package Information:
https://launchpad.net/ubuntu/+source/tiff/4.1.0+git191117-2ubuntu0.20.04.4
https://launchpad.net/ubuntu/+source/tiff/4.0.9-5ubuntu0.6

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