CVE-2008-3108 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Severity

99%

Complexity

99%

Confidentiality

165%

Buffer overflow in Sun Java Runtime Environment (JRE) in JDK and JRE 5.0 before Update 10, SDK and JRE 1.4.x before 1.4.2_18, and SDK and JRE 1.3.x before 1.3.1_23 allows context-dependent attackers to gain privileges via unspecified vectors related to font processing.

Buffer overflow in Sun Java Runtime Environment (JRE) in JDK and JRE 5.0 before Update 10, SDK and JRE 1.4.x before 1.4.2_18, and SDK and JRE 1.3.x before 1.3.1_23 allows context-dependent attackers to gain privileges via unspecified vectors related to font processing.

CVSS 2.0 Base Score 9.9. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:C/I:C/A:C).

Demo Examples

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

This example takes an IP address from a user, verifies that it is well formed and then looks up the hostname and copies it into a buffer.


               
}
strcpy(hostname, hp->h_name);/*routine that ensures user_supplied_addr is in the right format for conversion */

This function allocates a buffer of 64 bytes to store the hostname, however there is no guarantee that the hostname will not be larger than 64 bytes. If an attacker specifies an address which resolves to a very large hostname, then we may overwrite sensitive data or even relinquish control flow to the attacker.

Note that this example also contains an unchecked return value (CWE-252) that can lead to a NULL pointer dereference (CWE-476).

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

This example applies an encoding procedure to an input string and stores it into a buffer.


               
}
return dst_buf;
die("user string too long, die evil hacker!");
else dst_buf[dst_index++] = user_supplied_string[i];
dst_buf[dst_index++] = ';';
/* encode to < */

The programmer attempts to encode the ampersand character in the user-controlled string, however the length of the string is validated before the encoding procedure is applied. Furthermore, the programmer assumes encoding expansion will only expand a given character by a factor of 4, while the encoding of the ampersand expands by 5. As a result, when the encoding procedure expands the string it is possible to overflow the destination buffer if the attacker provides a string of many ampersands.

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

The following example asks a user for an offset into an array to select an item.


               
}
printf("You selected %s\n", items[index-1]);

The programmer allows the user to specify which element in the list to select, however an attacker can provide an out-of-bounds offset, resulting in a buffer over-read (CWE-126).

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

In the following code, the method retrieves a value from an array at a specific array index location that is given as an input parameter to the method


               
}
return value;// check that the array index is less than the maximum// length of the array
value = array[index];// get the value at the specified index of the array
// if array index is invalid then output error message// and return value indicating error
value = -1;

However, this method only verifies that the given array index is less than the maximum length of the array but does not check for the minimum value (CWE-839). This will allow a negative value to be accepted as the input array index, which will result in a out of bounds read (CWE-125) and may allow access to sensitive memory. The input array index should be checked to verify that is within the maximum and minimum range required for the array (CWE-129). In this example the if statement should be modified to include a minimum range check, as shown below.


               
...// check that the array index is within the correct// range of values for the array

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Windows provides the _mbs family of functions to perform various operations on multibyte strings. When these functions are passed a malformed multibyte string, such as a string containing a valid leading byte followed by a single null byte, they can read or write past the end of the string buffer causing a buffer overflow. The following functions all pose a risk of buffer overflow: _mbsinc _mbsdec _mbsncat _mbsncpy _mbsnextc _mbsnset _mbsrev _mbsset _mbsstr _mbstok _mbccpy _mbslen

Overview

First reported 16 years ago

2008-07-09 23:41:00

Last updated 5 years ago

2019-07-31 12:47:00

Affected Software

Sun J2RE 1.3.1

1.3.1

Sun JRE 1.3.1_2

1.3.1_2

Sun JRE 1.3.1_03

1.3.1_03

Sun JRE 1.3.1_04

1.3.1_04

Sun JRE 1.3.1_05

1.3.1_05

Sun JRE 1.3.1_06

1.3.1_06

Sun JRE 1.3.1_07

1.3.1_07

Sun JRE 1.3.1_08

1.3.1_08

Sun JRE 1.3.1_09

1.3.1_09

Sun JRE 1.3.1_10

1.3.1_10

Sun JRE 1.3.1_11

1.3.1_11

Sun JRE 1.3.1_12

1.3.1_12

Sun JRE 1.3.1_13

1.3.1_13

Sun JRE 1.3.1_14

1.3.1_14

Sun JRE 1.3.1_15

1.3.1_15

Sun JRE 1.3.1_16

1.3.1_16

Sun JRE 1.3.1_17

1.3.1_17

Sun JRE 1.3.1_18

1.3.1_18

Sun JRE 1.3.1_19

1.3.1_19

Sun JRE 1.3.1_20

1.3.1_20

Sun JRE 1.3.1_21

1.3.1_21

Sun JRE 1.3.1_22

1.3.1_22

Sun JRE 1.3.1_23

1.3.1_23

Sun JRE 1.4.2

1.4.2

Sun JRE 1.4.2_1

1.4.2_1

Sun JRE 1.4.2_2

1.4.2_2

Sun JRE 1.4.2_3

1.4.2_3

Sun JRE 1.4.2_4

1.4.2_4

Sun JRE 1.4.2_5

1.4.2_5

Sun JRE 1.4.2_6

1.4.2_6

Sun JRE 1.4.2_7

1.4.2_7

Sun JRE 1.4.2_8

1.4.2_8

Sun JRE 1.4.2_9

1.4.2_9

Sun JRE 1.4.2_10

1.4.2_10

Sun JRE 1.4.2_11

1.4.2_11

Sun JRE 1.4.2_12

1.4.2_12

Sun JRE 1.4.2_13

1.4.2_13

Sun JRE 1.4.2_14

1.4.2_14

Sun JRE 1.4.2_15

1.4.2_15

Sun JRE 1.4.2_16

1.4.2_16

Sun JRE 1.4.2_17

1.4.2_17

Sun JRE 1.4.2_18

1.4.2_18

Sun JRE 1.5.0

1.5.0

Sun JRE 1.5.0_1 (JRE 5.0 Update 1)

1.5.0

Sun JRE 1.5.0_10 (JRE 5.0 Update 10)

1.5.0

Sun JRE 1.5.0_2 (JRE 5.0 Update 2)

1.5.0

Sun JRE 1.5.0_3 (JRE 5.0 Update 3)

1.5.0

Sun JRE 1.5.0_4 (JRE 5.0 Update 4)

1.5.0

Sun JRE 1.5.0_5 (JRE 5.0 Update 5)

1.5.0

Sun JRE 1.5.0_6 (JRE 5.0 Update 6)

1.5.0

Sun JRE 1.5.0_7 (JRE 5.0 Update 7)

1.5.0

Sun JRE 1.5.0_8 (JRE 5.0 Update 8)

1.5.0

Sun JRE 1.5.0_9 (JRE 5.0 Update 9)

1.5.0

Sun JDK 1.5.0

1.5.0

Sun JDK 5.0 Update1

1.5.0

Sun JDK 5.0 Update10

1.5.0

Sun JDK 5.0 Update2

1.5.0

Sun JDK 5.0 Update3

1.5.0

Sun JDK 5.0 Update4

1.5.0

Sun JDK 5.0 Update5

1.5.0

Sun JDK 1.5.0_6

1.5.0

Sun JDK 5.0 Update7

1.5.0

Sun JDK 1.5 _07-b03

1.5.0

Sun JDK 5.0 Update8

1.5.0

Sun JDK 5.0 Update9

1.5.0

Sun SDK 1.3.1

1.3.1

Sun SDK 1.3.1_01

1.3.1_01

Sun SDK 1.3.1_01a

1.3.1_01a

Sun SDK 1.3.1_02

1.3.1_02

Sun SDK 1.3.1_03

1.3.1_03

Sun SDK 1.3.1_04

1.3.1_04

Sun SDK 1.3.1_05

1.3.1_05

Sun SDK 1.3.1_06

1.3.1_06

Sun SDK 1.3.1_07

1.3.1_07

Sun SDK 1.3.1_08

1.3.1_08

Sun SDK 1.3.1_09

1.3.1_09

Sun SDK 1.3.1_10

1.3.1_10

Sun SDK 1.3.1_11

1.3.1_11

Sun SDK 1.3.1_12

1.3.1_12

Sun SDK 1.3.1_13

1.3.1_13

Sun SDK 1.3.1_14

1.3.1_14

Sun SDK 1.3.1_15

1.3.1_15

Sun SDK 1.3.1_16

1.3.1_16

Sun SDK 1.3.1_17

1.3.1_17

Sun SDK 1.3.1_18

1.3.1_18

Sun SDK 1.3.1_19

1.3.1_19

Sun SDK 1.3.1_20

1.3.1_20

Sun SDK 1.3.1_21

1.3.1_21

Sun SDK 1.3.1_22

1.3.1_22

Sun SDK 1.3.1_23

1.3.1_23

SDK 1.4.2

1.4.2

Sun SDK 1.4.2_1

1.4.2_1

SDK 1.4.2_02

1.4.2_02

Sun SDK 1.4.2_2

1.4.2_2

SDK 1.4.2_03

1.4.2_03

Sun SDK 1.4.2_3

1.4.2_3

SDK 1.4.2_04

1.4.2_04

Sun SDK 1.4.2_4

1.4.2_4

Sun SDK 1.4.2_5

1.4.2_5

Sun SDK 1.4.2_6

1.4.2_6

Sun SDK 1.4.2_7

1.4.2_7

Sun SDK 1.4.2_08

1.4.2_08

Sun SDK 1.4.2_8

1.4.2_8

Sun SDK 1.4.2_09

1.4.2_09

Sun SDK 1.4.2_9

1.4.2_9

Sun SDK 1.4.2_10

1.4.2_10

Sun SDK 1.4.2_11

1.4.2_11

Sun SDK 1.4.2_12

1.4.2_12

Sun SDK 1.4.2_13

1.4.2_13

Sun SDK 1.4.2_14

1.4.2_14

Sun SDK 1.4.2_15

1.4.2_15

Sun SDK 1.4.2_16

1.4.2_16

Sun SDK1.4.2_17

1.4.2_17

Sun SDK1.4.2_18

1.4.2_18

References

APPLE-SA-2008-09-24

Mailing List, Third Party Advisory

SUSE-SA:2008:042

Mailing List, Third Party Advisory

SUSE-SA:2008:043

Mailing List, Third Party Advisory

SUSE-SA:2008:045

Mailing List, Third Party Advisory

20081004 VMSA-2008-0016 VMware Hosted products, VirtualCenter Update 3 and

Mailing List, Third Party Advisory

31010

Third Party Advisory

31320

Third Party Advisory

31497

Third Party Advisory

31600

Third Party Advisory

31736

Third Party Advisory

32018

Third Party Advisory

32179

Third Party Advisory

32180

Third Party Advisory

33236

Third Party Advisory

33237

Third Party Advisory

37386

Third Party Advisory

GLSA-200911-02

Third Party Advisory

238666

Broken Link

http://support.apple.com/kb/HT3178

Third Party Advisory

http://support.apple.com/kb/HT3179

Third Party Advisory

http://support.avaya.com/elmodocs2/security/ASA-2008-300.htm

Third Party Advisory

http://support.avaya.com/elmodocs2/security/ASA-2008-507.htm

Third Party Advisory

http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=751014

Third Party Advisory

http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=756717

Third Party Advisory

RHSA-2008:0790

Third Party Advisory

RHSA-2008:1043

Third Party Advisory

RHSA-2008:1044

Third Party Advisory

20081004 VMSA-2008-0016 VMware Hosted products, VirtualCenter Update 3 and patches for ESX and ESXi resolve multiple security issues

Third Party Advisory, VDB Entry

30147

Third Party Advisory, VDB Entry

1020461

Third Party Advisory, VDB Entry

TA08-193A

Third Party Advisory, US Government Resource

http://www.vmware.com/security/advisories/VMSA-2008-0016.html

Third Party Advisory

ADV-2008-2056

Third Party Advisory

ADV-2008-2740

Third Party Advisory

sun-jre-font-bo(43656)

VDB Entry

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