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CVE
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CVE-2018-15501Date: (C)2018-08-20   (M)2023-12-22


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 '' byte to trigger an out-of-bounds read that leads to DoS.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
https://bugzilla.suse.com/show_bug.cgi?id=1104641
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649
https://github.com/libgit2/libgit2/releases/tag/v0.26.6
https://github.com/libgit2/libgit2/releases/tag/v0.27.4
https://www.pro-linux.de/sicherheit/2/44650/denial-of-service-in-libgit2.html

CPE    2
cpe:/o:debian:debian_linux:9.0
cpe:/o:debian:debian_linux:8.0
CWE    1
CWE-125
OVAL    2
oval:org.secpod.oval:def:2000265
oval:org.secpod.oval:def:1900977

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