Several vulnerabilities were found in libexif, a library used to parse EXIF meta-data on camera files.
CVE-2012-2812 :
A heap-based out-of-bounds array read in the exif_entry_get_value function 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 heap-based out-of-bounds array read in the exif_convert_utf16_to_utf8 function 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-2012-2814 :
A buffer overflow in the exif_entry_format_value function allows remote attackers to cause a denial of service or possibly execute arbitrary code via an image with crafted EXIF tags.
CVE-2012-2836 :
A heap-based out-of-bounds array read in the exif_data_load_data function 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-2012-2837 :
A divide-by-zero error in the mnote_olympus_entry_get_value function while formatting EXIF maker note tags allows remote attackers to cause a denial of service via an image with crafted EXIF tags.
CVE-2012-2840 :
An off-by-one error in the exif_convert_utf16_to_utf8 function allows remote attackers to cause a denial of service or possibly execute arbitrary code via an image with crafted EXIF tags.
CVE-2012-2841 :
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-2559. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(62599);
script_version("1.12");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2012-2812", "CVE-2012-2813", "CVE-2012-2814", "CVE-2012-2836", "CVE-2012-2837", "CVE-2012-2840", "CVE-2012-2841");
script_bugtraq_id(54437);
script_xref(name:"DSA", value:"2559");
script_name(english:"Debian DSA-2559-1 : libexif - several vulnerabilities");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Several vulnerabilities were found in libexif, a library used to parse
EXIF meta-data on camera files.
- CVE-2012-2812 :
A heap-based out-of-bounds array read in the
exif_entry_get_value function 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 heap-based out-of-bounds array read in the
exif_convert_utf16_to_utf8 function 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-2012-2814 :
A buffer overflow in the exif_entry_format_value
function allows remote attackers to cause a denial of
service or possibly execute arbitrary code via an image
with crafted EXIF tags.
- CVE-2012-2836 :
A heap-based out-of-bounds array read in the
exif_data_load_data function 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-2012-2837 :
A divide-by-zero error in the
mnote_olympus_entry_get_value function while formatting
EXIF maker note tags allows remote attackers to cause a
denial of service via an image with crafted EXIF tags.
- CVE-2012-2840 :
An off-by-one error in the exif_convert_utf16_to_utf8
function allows remote attackers to cause a denial of
service or possibly execute arbitrary code via an image
with crafted EXIF tags.
- CVE-2012-2841 :
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."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=681454"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2812"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2813"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2814"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2836"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2837"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2840"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2012-2841"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze/libexif"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2012/dsa-2559"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the libexif packages.
For the stable distribution (squeeze), these problems have been fixed
in version 0.6.19-1+squeeze1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libexif");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2012/10/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/10/18");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"6.0", prefix:"libexif-dev", reference:"0.6.19-1+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"libexif12", reference:"0.6.19-1+squeeze1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libexif | p-cpe:/a:debian:debian_linux:libexif |
debian | debian_linux | 6.0 | cpe:/o:debian:debian_linux:6.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2812
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2813
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2814
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2836
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2837
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2840
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-2841
bugs.debian.org/cgi-bin/bugreport.cgi?bug=681454
packages.debian.org/source/squeeze/libexif
security-tracker.debian.org/tracker/CVE-2012-2812
security-tracker.debian.org/tracker/CVE-2012-2813
security-tracker.debian.org/tracker/CVE-2012-2814
security-tracker.debian.org/tracker/CVE-2012-2836
security-tracker.debian.org/tracker/CVE-2012-2837
security-tracker.debian.org/tracker/CVE-2012-2840
security-tracker.debian.org/tracker/CVE-2012-2841
www.debian.org/security/2012/dsa-2559