SB2020040137 - Arch Linux update for pam-krb5

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Main Vulnerability Database SB2020040137

SB2020040137 - Arch Linux update for pam-krb5

Published: April 1, 2020

Security Bulletin ID SB2020040137
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Buffer overflow (CVE-ID: CVE-2020-10595)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data passed during supplemental prompting. A remote attacker can pass an overly long string to pam-krb5 via the underlying Kerberos library, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that the Kerberos library does supplemental prompting, such as with PKINIT or when using the non-standard no_prompt PAM configuration option.


Remediation

Install update from vendor's website.

References