Security Bulletin: IBM Dynamic System Analysis (DSA) Preboot is affected by vulnerabilities in GNU C Library (CVE-2017-15804 CVE-2017-15670 CVE-2015-5180)

Summary

IBM Dynamic System Analysis (DSA) Preboot has addressed the following vulnerabilities in GNU C Library.

Vulnerability Details

CVEID: CVE-2017-15804 DESCRIPTION: GNU C Library (aka glibc or libc6) is vulnerable to a buffer overflow, caused by improper bounds checking by glob function in glob.c. By using a specially-crafted file, a local attacker could overflow a buffer.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/133996&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2017-15670 DESCRIPTION: GNU C Library is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the glob function in glob.c. By sending a specially-crafted string, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/133915&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID: CVE-2015-5180 DESCRIPTION: glibc is vulnerable to a denial of service, caused by a NULL pointer dereference in the res_query function in libresolv. By using a malformed pattern, a remote attacker could cause the process to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/130620&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Product

|

Affected Version

—|—

IBM Dynamic System Analysis (DSA) Preboot

|

9.6

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

Product

|

Fix Version

—|—

IBM Dynamic System Analysis (DSA) Preboot
(ibm_fw_dsa_dsyte2z-9.65_anyos_32-64)

|

dsyte2z-9.65

Workarounds and Mitigations

None