SB2021110829 - Anolis OS update for libsolv

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Main Vulnerability Database SB2021110829

SB2021110829 - Anolis OS update for libsolv

Published: November 8, 2021 Updated: March 28, 2025

Security Bulletin ID SB2021110829
Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 20% Low 80%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2021-33928)

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

The vulnerability exists due to a boundary error when processing untrusted input within the pool_installable() function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.


2) Out-of-bounds write (CVE-ID: CVE-2021-33929)

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

The vulnerability exists due to a boundary error when processing untrusted input within the pool_disabled_solvable() function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.

3) Out-of-bounds write (CVE-ID: CVE-2021-33930)

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

The vulnerability exists due to a boundary error when processing untrusted input within the pool_installable_whatprovides(0 function in src/repo.h. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.

4) Out-of-bounds write (CVE-ID: CVE-2021-33938)

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

The vulnerability exists due to a boundary error when processing untrusted input within the prune_to_recommended(0 function in src/policy.c. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger an out-of-bounds write and crash the application.

5) Out-of-bounds read (CVE-ID: CVE-2019-20387)

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

The vulnerability exists due to heap-based buffer over-read via a last schema whose length is less than the length of the input schema. A remote attacker can perform a denial of service attack.


Remediation

Install update from vendor's website.

References