SB2017011021 - Fedora 25 update for libgit2

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Main Vulnerability Database SB2017011021

SB2017011021 - Fedora 25 update for libgit2

Published: January 10, 2017 Updated: April 24, 2025

Security Bulletin ID SB2017011021
Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 33% Medium 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2016-10128)

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

Buffer overflow in the git_pkt_parse_line function in transports/smart_pkt.c in the Git Smart Protocol support in libgit2 before 0.24.6 and 0.25.x before 0.25.1 allows remote attackers to have unspecified impact via a crafted non-flush packet.


2) NULL pointer dereference (CVE-ID: CVE-2016-10129)

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

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via an empty packet line.


3) Improper access control (CVE-ID: CVE-2016-10130)

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The http_connect function in transports/http.c in libgit2 before 0.24.6 and 0.25.x before 0.25.1 might allow man-in-the-middle attackers to spoof servers by leveraging clobbering of the error variable.


Remediation

Install update from vendor's website.

References