SB2021102523 - Ubuntu update for binutils

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Main Vulnerability Database SB2021102523

SB2021102523 - Ubuntu update for binutils

Published: October 25, 2021

Security Bulletin ID SB2021102523
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2020-16592)

The vulnerability allows a local attacker to perform a denial of service attack.

The vulnerability exists in bfd_hash_lookup. A local attacker can trick the victim into opening a specially crafted data, trigger use-after-free and perform a denial of service attack.


2) Input validation error (CVE-ID: CVE-2021-3487)

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

The vulnerability exists due to insufficient validation of user-supplied input within the BFD library in binutils. A remote attacker who supplies a crafted file to an application linked with BFD can use the DWARF functionality to perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References