Security Bulletin: IBM Transform Services for IBM i is vulnerable to denial of service, buffer overflow, and allowing attacker to obtain sensitive information due to multiple vulnerabilities.

Security Bulletin

Summary

Transform Services for IBM i is vulnerable to denial of service, heap memory buffer overflow, and allowing attacker to obtain sensitive information due to multiple vulnerabilities in Independent JPEG Group (IJG) JPEG library and zlib library as described in the vulnerability details section. IBM i has addressed the vulnerabilities in Transform Services for IBM i with a fix as described in the remediation/fixes section.

Vulnerability Details

CVEID: CVE-2021-46822
DESCRIPTION: libjpeg-turbo is vulnerable to a denial of service, caused by heap-based buffer overflow in the get_word_rgb_row function in rdppm.c. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221567 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID: CVE-2018-14498
DESCRIPTION: libjpeg-turbo and MozJPEG are vulnerable to a denial of service, caused by a heap-based buffer over-read in get_8bit_row in rdbmp.c. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/158472 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-11813
DESCRIPTION: libjpeg is vulnerable to a denial of service, caused by a large loop in the read_pixel function in rdtarga.c. By persuading a victim to open a specially-crafted file, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/144667 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2020-14152
DESCRIPTION: IJG JPEG is vulnerable to a denial of service, caused by excessive memory consumption in jpeg_mem_available() in jmemnobs.c in djpeg. By persuading a victim to open a specially crafted file, a remote attacker could exploit this vulnerability to disclose information or cause the application to crash.
CVSS Base score: 4.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/183463 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L)

CVEID: CVE-2013-6629
DESCRIPTION: Google Chrome could allow a remote attacker to obtain sensitive information, caused by an error in the get_sos() function within the libjpeg and libjpeg-turbo libraries. An attacker could exploit this vulnerability to read uninitialized memory and obtain sensitive information.
CVSS Base score: 5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/88783 for the current score.
CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVEID: CVE-2017-15232
DESCRIPTION: libjpeg-turbo is vulnerable to a denial of service, caused by a NULL pointer dereference in jdpostct.c and jquant1.c. By persuading a victim to open a specially crafted JPEG file, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 3.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/133309 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2012-2806
DESCRIPTION: libjpeg-turbo is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the get_sos() function. By persuading a victim to open a specially-crafted JPEG image, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base score: 6.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/76952 for the current score.
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVEID: CVE-2013-6630
DESCRIPTION: Google Chrome could allow a remote attacker to obtain sensitive information, caused by an error in the get_dht() function within the libjpeg and libjpeg-turbo libraries. An attacker could exploit this vulnerability to read uninitialized memory and obtain sensitive information.
CVSS Base score: 4.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/88784 for the current score.
CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVEID: CVE-2022-37434
DESCRIPTION: zlib is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by inflate in inflate.c. By using a large gzip header extra field, 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/232849 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-2020-35538
DESCRIPTION: libjpeg-turbo is vulnerable to a denial of service, caused by a segmentation fault in the jcopy_sample_rows() function when processing JPG files. By persuading a victim to open a specially-crafted JPG file using certain optimization flags, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/235055 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

IBM X-Force ID: 221377
DESCRIPTION: zlib is vulnerable to a denial of service, caused by the use of uninitialized value in inflate() function. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 6.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/221377 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)	Version(s)
IBM Transform Services for i	7.5
IBM Transform Services for i	7.4
IBM Transform Services for i	7.3
IBM Transform Services for i	7.2

Remediation/Fixes

The issue can be fixed by applying a PTF to IBM i. IBM i releases 7.5, 7.4, 7.3, and 7.2 will be fixed.

The IBM i PTF numbers contain the fix for the vulnerability.

IBM i Release	5770-TS1 PTF Number	PTF Download Link
7.5	SI80776	SI80776
7.4	SI80841	SI80841
7.3	SI80909	SI80909
7.2	SI80912	SI80912

https://www.ibm.com/support/fixcentral

Important note: IBM recommends that all users running unsupported versions of affected products upgrade to supported and fixed version of affected products.

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Change History

17 Nov 2022: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

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Tips

Security Bulletin: IBM Transform Services for IBM i is vulnerable to denial of service, buffer overflow, and allowing attacker to obtain sensitive information due to multiple vulnerabilities.