Nom du paquet
libexif
Date
2013-04-05
Advisory ID
MDVSA-2013:035
Affected versions
MBS1 x86_64

Problem description

Multiple vulnerabilities has been discovered and corrected in libexif:

A heap-based out-of-bounds array read in the exif_entry_get_value
function in libexif/exif-entry.c in libexif 0.6.20 and earlier allows
remote attackers to cause a denial of service or possibly obtain
potentially sensitive information from process memory via an image
with crafted EXIF tags (CVE-2012-2812).

A heap-based out-of-bounds array read in the exif_convert_utf16_to_utf8
function in libexif/exif-entry.c in libexif 0.6.20 and earlier allows
remote attackers to cause a denial of service or possibly obtain
potentially sensitive information from process memory via an image
with crafted EXIF tags (CVE-2012-2813).

A buffer overflow in the exif_entry_format_value function in
libexif/exif-entry.c in libexif 0.6.20 allows remote attackers to
cause a denial of service or possibly execute arbitrary code via an
image with crafted EXIF tags (CVE-2012-2814).

A heap-based out-of-bounds array read in the exif_data_load_data
function in libexif 0.6.20 and earlier allows remote attackers to
cause a denial of service or possibly obtain potentially sensitive
information from process memory via an image with crafted EXIF tags
(CVE-2012-2836).

A divide-by-zero error in the mnote_olympus_entry_get_value function
while formatting EXIF maker note tags in libexif 0.6.20 and earlier
allows remote attackers to cause a denial of service via an image
with crafted EXIF tags (CVE-2012-2837).

An off-by-one error in the exif_convert_utf16_to_utf8 function in
libexif/exif-entry.c in libexif 0.6.20 and earlier allows remote
attackers to cause a denial of service or possibly execute arbitrary
code via an image with crafted EXIF tags (CVE-2012-2840).

An integer underflow in the exif_entry_get_value function can cause a
heap overflow and potentially arbitrary code execution while formatting
an EXIF tag, if the function is called with a buffer size parameter
equal to zero or one (CVE-2012-2841).

The updated packages have been upgraded to the 0.6.21 version which
is not vulnerable to these issues.

Updated packages

MBS1 x86_64

 b80829936144c51c54311141e318d2cf  mbs1/x86_64/lib64exif12-0.6.21-1.mbs1.x86_64.rpm
 157811aa676f0e3880562613915a7a38  mbs1/x86_64/lib64exif-devel-0.6.21-1.mbs1.x86_64.rpm
 0d25a19fee1af83ae917b703dd4aa32f  mbs1/x86_64/libexif12-common-0.6.21-1.mbs1.x86_64.rpm 
 17bc1e1ff5b868817ee16e490b154be1  mbs1/SRPMS/libexif-0.6.21-1.mbs1.src.rpm

References