National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-15501 Detail

Current Description

In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS.

Source:  MITRE
Description Last Modified:  08/17/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406 Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1104641 Issue Tracking Patch Third Party Advisory
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649 Patch Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.26.6 Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.4 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html Mailing List Third Party Advisory
https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

2 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-15501
NVD Published Date:
08/17/2018
NVD Last Modified:
10/12/2018