SB2020082528 - Red Hat Enterprise Linux 7 update for kernel-alt

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Main Vulnerability Database SB2020082528

SB2020082528 - Red Hat Enterprise Linux 7 update for kernel-alt

Published: August 25, 2020 Updated: April 24, 2025

Security Bulletin ID SB2020082528
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2020-10769)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the crypto_authenc_extractkeys() function in crypto/authenc.c in the IPsec Cryptographic algorithm's module "authenc". A local low-privileged user can run a specially crafted program to trigger an out-of-bounds read error and crash the system.


2) Resource exhaustion (CVE-ID: CVE-2020-12655)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in "xfs_agf_verify" in "fs/xfs/libxfs/xfs_alloc.c" file. A local user can use an XFS v5 image with crafted metadata, trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References