SB2019110735 - Multiple vulnerabilities in Linux kernel

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Main Vulnerability Database SB2019110735

SB2019110735 - Multiple vulnerabilities in Linux kernel

Published: November 7, 2019 Updated: July 17, 2020

Security Bulletin ID SB2019110735
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Memory leak (CVE-ID: CVE-2019-18806)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the ql_alloc_large_buffers() function in drivers/net/ethernet/qlogic/qla3xxx.c in the Linux kernel before 5.3.5 allows local users to cause a denial of service (memory consumption) by triggering pci_dma_mapping_error() failures, aka CID-1acb8f2a7a9f. A remote attacker can perform a denial of service attack.


2) Resource exhaustion (CVE-ID: CVE-2019-18807)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

Two memory leaks in the sja1105_static_config_upload() function in drivers/net/dsa/sja1105/sja1105_spi.c in the Linux kernel before 5.3.5 allow attackers to cause a denial of service (memory consumption) by triggering static_config_buf_prepare_for_upload() or sja1105_inhibit_tx() failures, aka CID-68501df92d11.


Remediation

Install update from vendor's website.

References