Off-by-one error in the png_formatted_warning function in pngerror.c in libpng 1.5.4 through 1.5.7 might allow remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via unspecified vectors, which trigger a stack-based buffer overflow.

This is an update to MinGW cross compiled libpng 1.5.13, including a fix to CVE-2011-3464.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201206-15 (libpng: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in libpng:
      The &ldquo;embedded_profile_len()&rdquo; function in pngwutil.c does not         check for negative values, resulting in a memory leak (CVE-2009-5063).
      The &ldquo;png_format_buffer()&rdquo; function in pngerror.c contains an         off-by-one error (CVE-2011-2501).
      The &ldquo;png_rgb_to_gray()&rdquo; function in pngrtran.c contains an         integer overflow error (CVE-2011-2690).
      The &ldquo;png_err()&rdquo; function in pngerror.c contains a NULL pointer         dereference error (CVE-2011-2691).
      The &ldquo;png_handle_sCAL()&rdquo; function in pngrutil.c improperly handles         malformed sCAL chunks(CVE-2011-2692).
      The &ldquo;png_decompress_chunk()&rdquo; function in pngrutil.c contains an         integer overflow error (CVE-2011-3026).
      The &ldquo;png_inflate()&rdquo; function in pngrutil.c contains and out of         bounds error (CVE-2011-3045).
      The &ldquo;png_set_text_2()&rdquo; function in pngset.c contains an error         which could result in memory corruption (CVE-2011-3048).
      The &ldquo;png_formatted_warning()&rdquo; function in pngerror.c contains an         off-by-one error (CVE-2011-3464).
  Impact :

    An attacker could exploit these vulnerabilities to execute arbitrary       code with the permissions of the user running the vulnerable program,       which could be the root user, or to cause programs linked against the       library to crash.
  Workaround :

    There is no known workaround at this time.

ID	Name	Product	Family	Severity
62645	Fedora 17 : mingw-libpng-1.5.13-1.fc17 (2012-15613)	Nessus	Fedora Local Security Checks	high
62486	Fedora 18 : mingw-libpng-1.5.13-1.fc18 (2012-15592)	Nessus	Fedora Local Security Checks	high
59668	GLSA-201206-15 : libpng: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high

Detections

Analytics

CVE-2011-3464

critical

Tenable Plugins

high

high

high