CVE-2018-15501

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.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html	Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.4	Release Notes Third Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.26.6	Release Notes Third Party Advisory
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649	Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1104641	Issue Tracking Patch Third Party Advisory
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406	Exploit Issue Tracking Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html	Mailing List Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration 2 (hide)

OR	cpe:2.3:a:libgit2:libgit2::::::::
	cpe:2.3:a:libgit2:libgit2::::::::

Information

Published : 2018-08-17 19:29

Updated : 2022-05-11 13:59

NVD link : CVE-2018-15501

Mitre link : CVE-2018-15501

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

debian

debian_linux

libgit2

libgit2

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