Security Bulletin: IBM Security Guardium is affected by a number of security vulnerabilities in Netty, which is used by Guardium (CVE-2021-21290, CVE-2021-21295, CVE-2021-21409, CVE-2021-37136, CVE-2021-37137)

Summary

IBM Security Guardium has fixed these vulnerabilities.

Vulnerability Details

CVEID:CVE-2021-21290
**DESCRIPTION:**Netty could allow a local authenticated attacker to obtain sensitive information, caused by an insecure temp file in Unix-like systems. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197110 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2021-21295
**DESCRIPTION:**Netty is vulnerable to HTTP request smuggling, caused by improper validation of Content-Length header by the Http2MultiplexHandler. By sending specially crafted HTTP request headers, an attacker could exploit this vulnerability to poison a web-cache, perform an XSS attack, or obtain sensitive information from request.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/197999 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2021-21409
**DESCRIPTION:**Netty is vulnerable to request smuggling, caused by improper validation of request, caused by missing validation of content-length. By sending specially-crafted request, an attacker could exploit this vulnerability to poison a web-cache, perform an XSS attack, or obtain sensitive information from request.
CVSS Base score: 7.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/199150 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)

CVEID:CVE-2021-37136
**DESCRIPTION:**Netty netty-codec is vulnerable to a denial of service, caused by not allow size restrictions for decompressed data in the Bzip2Decoder. By sending a specially-crafted input, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211777 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-37137
**DESCRIPTION:**Netty netty-codec is vulnerable to a denial of service, caused by not restrict the chunk length in the SnappyFrameDecoder. By sending a specially-crafted input, a remote attacker could exploit this vulnerability to cause excessive memory usage, and results in a denial of service condition.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/211779 for the current score.
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

Remediation/Fixes

IBM encourages customers to update their systems promptly.

Workarounds and Mitigations

None