National Vulnerability Database

National Vulnerability Database

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CVE-2018-10887 Detail

Current Description

A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service.


View Analysis Description

Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  8.1 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1598021 Issue Tracking  Patch 
https://github.com/libgit2/libgit2/commit/3f461902dc1072acb8b7607ee65d0a0458ffac2a Patch  Third Party Advisory 
https://github.com/libgit2/libgit2/commit/c1577110467b701dcbcf9439ac225ea851b47d22 Patch  Third Party Advisory 
https://github.com/libgit2/libgit2/releases/tag/v0.27.3 Patch  Release Notes  Third Party Advisory 
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-190 Integer Overflow or Wraparound cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  
CWE-125 Out-of-bounds Read cwe source acceptance level NIST   Reference acceptance level Red Hat, Inc.  
CWE-194 Unexpected Sign Extension Reference acceptance level Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-10887
NVD Published Date:
07/10/2018
NVD Last Modified:
10/09/2019
Source:
MITRE