Security Bulletin: IBM Security Proventia Network Active Bypass is affected by glibc vulnerabilities (CVE-2018-20796, CVE-2019-9169)

Summary

IBM Security Proventia Network Active Bypass has addressed the following vulnerabilities. (CVE-2018-20796, CVE-2019-9169)

Vulnerability Details

CVE-ID: CVE-2018-20796 Description: GNU C Library (aka glibc or libc6) is vulnerable to a denial of service, caused by an uncontrolled recursion in the check_dst_limits_calc_pos_1 in posix/regexec.c. By using a specially-crafted command, a local attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 4.0
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/158013&gt; for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVE-ID: CVE-2019-9169 Description: GNU glibc is vulnerable to a heap-based buffer overflow, caused by a buffer over-read flaw in the proceed_next_node function in posix/regexec.c. By sending a specially-crafted argument using a case-insensitive regular-expression match, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: <https://exchange.xforce.ibmcloud.com/vulnerabilities/157800&gt; for more information
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)

Affected Products and Versions

IBM Security 1G Network Active Bypass firmware version 1.x through 3.x firmware levels 1.0.849 through 3.30.13
IBM Security 10G Network Active Bypass firmware versions 1.x through 3.x firmware levels 1.0.1876 through 3.30.13

Remediation/Fixes

[Proventia 10G NAB Update 24 (fw 3.30.14)](<https://www.ibm.com/support/fixcentral/swg/selectFixes?parent=IBM Security&product=ibm/Tivoli/IBM+Security+Network+Active+Bypass&release=3.0&function=all>)

For IBM Security Proventia Network Active Bypass products at the following firmware versions:

• IBM Security 1G Network Active Bypass firmware version 1.X firmware levels 1.0.849 through 3.30.4-12, 3.30.5-21, 3.30.7-23, 3.30.9-27, 3.30.10-37, 3.30.11, 3.30.12, 3.30.13
• IBM Security 10G Network Active Bypass firmware versions 1.X firmware levels 1.0.1876 through 3.30.5-21, 3.30.7-23, 3.30.9-27, 3.30.10-37, 3.30.11, 3.30.12, 3.30.13

IBM recommends upgrading to 3.30.14, the supported firmware release of the product.

Workarounds and Mitigations

None