SB2020102027 - Out-of-bounds read in libgit2-1.0 (Alpine package)



SB2020102027 - Out-of-bounds read in libgit2-1.0 (Alpine package)

Published: October 20, 2020

Security Bulletin ID SB2020102027
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Out-of-bounds read (CVE-ID: CVE-2018-15501)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to out-of-bounds read in ng_pkt in transports/smart_pkt.c in libgit2. A remote attacker can send a specially crafted smart-protocol "ng" packet that lacks a '' byte and cause the service to crash.


Remediation

Install update from vendor's website.