Detections
Analytics
RHEL 6 : libpng (RHSA-2015:2594)
high Nessus Plugin ID 87305
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Synopsis
The remote Red Hat host is missing one or more security updates for libpng.Description
The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:2594 advisory.The libpng packages contain a library of functions for creating and manipulating PNG (Portable Network Graphics) image format files.
It was discovered that the png_get_PLTE() and png_set_PLTE() functions of libpng did not correctly calculate the maximum palette sizes for bit depths of less than 8. In case an application tried to use these functions in combination with properly calculated palette sizes, this could lead to a buffer overflow or out-of-bounds reads. An attacker could exploit this to cause a crash or potentially execute arbitrary code by tricking an unsuspecting user into processing a specially crafted PNG image. However, the exact impact is dependent on the application using the library.
(CVE-2015-8126, CVE-2015-8472)
An array-indexing error was discovered in the png_convert_to_rfc1123() function of libpng. An attacker could possibly use this flaw to cause an out-of-bounds read by tricking an unsuspecting user into processing a specially crafted PNG image. (CVE-2015-7981)
All libpng users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL libpng package based on the guidance in RHSA-2015:2594.See Also
http://www.nessus.org/u?352142bc
https://access.redhat.com/errata/RHSA-2015:2594
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: High
ID: 87305
File Name: redhat-RHSA-2015-2594.nasl
Version: 1.15
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/10/2015
Updated: 11/4/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2015-8472
CVSS v3
Risk Factor: High
Base Score: 7.3
Temporal Score: 6.6
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:libpng-devel, p-cpe:/a:redhat:enterprise_linux:libpng-static, p-cpe:/a:redhat:enterprise_linux:libpng, cpe:/o:redhat:enterprise_linux:6
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 12/9/2015
Vulnerability Publication Date: 11/12/2015