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Mandriva Linux Security Advisory : libpng (MDVSA-2011:151)
medium Nessus Plugin ID 56529
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Synopsis
The remote Mandriva Linux host is missing one or more security updates.Description
Multiple vulnerabilities has been discovered and corrected in libpng :The png_format_buffer function in pngerror.c in libpng allows remote attackers to cause a denial of service (application crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression (CVE-2011-2501).
Buffer overflow in libpng, when used by an application that calls the png_rgb_to_gray function but not the png_set_expand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG image (CVE-2011-2690).
The png_err function in pngerror.c in libpng makes a function call using a NULL pointer argument instead of an empty-string argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG image (CVE-2011-2691). NOTE:
This does not affect the binary packages in Mandriva, but could affect users if PNG_NO_ERROR_TEXT is defined using the libpng-source-1.?.?? package.
The png_handle_sCAL function in pngrutil.c in libpng does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory (CVE-2011-2692).
The updated packages have been patched to correct these issues.
Solution
Update the affected packages.Plugin Details
Severity: Medium
ID: 56529
File Name: mandriva_MDVSA-2011-151.nasl
Version: 1.9
Type: local
Family: Mandriva Local Security Checks
Published: 10/18/2011
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 5.9
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:mandriva:linux:lib64png-devel, p-cpe:/a:mandriva:linux:lib64png-static-devel, p-cpe:/a:mandriva:linux:lib64png3, p-cpe:/a:mandriva:linux:libpng-devel, p-cpe:/a:mandriva:linux:libpng-source, p-cpe:/a:mandriva:linux:libpng-static-devel, p-cpe:/a:mandriva:linux:libpng3, cpe:/o:mandriva:linux:2010.1
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/Mandrake/release, Host/Mandrake/rpm-list
Exploit Ease: No known exploits are available
Patch Publication Date: 10/17/2011
Reference Information
CVE: CVE-2011-2501, CVE-2011-2690, CVE-2011-2691, CVE-2011-2692
MDVSA: 2011:151