Security Bulletin: Vulnerabilities in Linux Kernel and Java affect IBM Spectrum Protect Plus

Summary

Multiple vulnerabilities in the Linux Kernel and Java may affect IBM Spectrum Protect Plus. The Java vulnerabilities were disclosed as part of the Java Critical Patch Updates in July and October 2020. UPDATED: 3 March 2021: Added CVE-2020-10711

Vulnerability Details

CVEID:CVE-2020-14782
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190100 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2020-8647
**DESCRIPTION:**Linux kernel could allow a remote attacker to obtain sensitive information, caused by a use-after-free in the vc_do_resize function of drivers/tty/vt/vt.c. An attacker could exploit this vulnerability to read memory that should not be available for access.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/175842 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID:CVE-2020-8649
**DESCRIPTION:**Linux kernel could allow a remote attacker to obtain sensitive information, caused by a use-after-free in the vgacon_invert_region function of drivers/video/console/vgacon.c. An attacker could exploit this vulnerability to read memory that should not be available for access.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/175844 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L)

CVEID:CVE-2020-12770
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by an issue with sg_write lacks an sg_remove_request call in a certain failure case. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause a panic.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/181750 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2020-14331
**DESCRIPTION:**Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by an out-of-bounds write flaw in the implementation of the invert video code on VGA consoles. By sending a specially-crafted request to resize the console, an authenticated attacker could exploit this vulnerability to gain elevated privileges or crash the system.
CVSS Base score: 6.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185987 for the current score.
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-10690
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a use-after-free in the cdev_put function in the Precision Time Protocol (PTP). By removing a PTP device while chardev is open, a local authenticated attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 4.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/180182 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2020-12826
**DESCRIPTION:**Linux Kernel could allow a local attacker to bypass security restrictions, caused by a signal access-control issue in exec_id in include/linux/sched.h. By sending a specially-crafted request, an attacker could exploit this vulnerability to bypass checks to send any signal to a privileged process.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/182113 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)

CVEID:CVE-2020-11565
**DESCRIPTION:**Linux Kernel could allow a local attacker to execute arbitrary code on the system, caused by a stack-based out-of-bounds write flaw in the mpol_parse_str function in mm/mempolicy.c. By sending a specially-crafted request, an attacker could exploit this vulnerability to execute arbitrary code or cause a denial of service condition on the system.
CVSS Base score: 8.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/179100 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

CVEID:CVE-2020-14583
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 8.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185061 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H)

CVEID:CVE-2020-14593
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the 2D component could allow an unauthenticated attacker to cause no confidentiality impact, high integrity impact, and no availability impact.
CVSS Base score: 7.4
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185071 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N)

CVEID:CVE-2020-14621
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JAXP component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185099 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2020-14556
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.8
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185034 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N)

CVEID:CVE-2020-14579
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185057 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-14578
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185056 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-14577
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the JSSE component could allow an unauthenticated attacker to obtain sensitive information resulting in a low confidentiality impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/185055 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N)

CVEID:CVE-2020-14792
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Hotspot component could allow an unauthenticated attacker to cause low confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 4.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190110 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N)

CVEID:CVE-2020-14797
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to cause no confidentiality impact, low integrity impact, and no availability impact.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190115 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

CVEID:CVE-2020-14779
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Serialization component could allow an unauthenticated attacker to cause a denial of service resulting in a low availability impact using unknown attack vectors.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190097 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID:CVE-2020-14796
**DESCRIPTION:**An unspecified vulnerability in Java SE related to the Libraries component could allow an unauthenticated attacker to obtain sensitive information resulting in a low confidentiality impact using unknown attack vectors.
CVSS Base score: 3.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/190114 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N)

CVEID:CVE-2019-19062
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the crypto_report() function in crypto/crypto_user_base.c. A remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171776 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-2019-19046
**DESCRIPTION:**Linux Kernel is vulnerable to a denial of service, caused by a memory leak in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c. A remote attacker could exploit this vulnerability to consume all available memory resources.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/171754 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-2020-10711
Description: Linux Kernel is vulnerable to a denial of service, caused by a NULL pointer dereference while receiving CIPSO packet with null category in the SELinux subsystem. By sending a specially-crafted CIPSO packet, a remote attacker could exploit this vulnerability to the system to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/181809 for more information
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

Workarounds and Mitigations

None