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FreeBSD : png -- unknown chunk processing uninitialized memory access (57c705d6-12ae-11dd-bab7-0016179b2dd5)
high Nessus Plugin ID 32110
Synopsis
The remote FreeBSD host is missing a security-related update.Description
Secunia reports :Tavis Ormandy has reported a vulnerability in libpng, which can be exploited by malicious people to cause a Denial of Service, disclose potentially sensitive information, or potentially compromise an application using the library.
The vulnerability is caused due to the improper handling of PNG chunks unknown to the library. This can be exploited to trigger the use of uninitialized memory in e.g. a free() call via unknown PNG chunks having a length of zero.
Successful exploitation may allow execution of arbitrary code, but requires that the application calls the png_set_read_user_chunk_fn() function or the png_set_keep_unknown_chunks() function under specific conditions.
Solution
Update the affected package.See Also
Plugin Details
Severity: High
ID: 32110
File Name: freebsd_pkg_57c705d612ae11ddbab70016179b2dd5.nasl
Version: 1.17
Type: local
Family: FreeBSD Local Security Checks
Published: 5/1/2008
Updated: 1/6/2021
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.8
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Vulnerability Information
CPE: p-cpe:/a:freebsd:freebsd:png, cpe:/o:freebsd:freebsd
Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info
Exploit Ease: No known exploits are available
Patch Publication Date: 4/25/2008
Vulnerability Publication Date: 4/12/2008
Reference Information
CVE: CVE-2008-1382
BID: 28770