High severity · published Aug 18, 2018
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…
7.5
CVSS
4.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.4% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
LI
Libgit2 · Libgit2
before 0.26.6; 0.27.0 before 0.27.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-15501
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-15501
Exploit
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1104641
Patch
https://github.com/libgit2/libgit2/commit/1f9a8510e1d2f20ed7334eeeddb92c4dd8e7c649
Release Notes
https://github.com/libgit2/libgit2/releases/tag/v0.26.6
Release Notes
https://github.com/libgit2/libgit2/releases/tag/v0.27.4
Mailing List
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-24061
GNU InetUtils Argument Injection Vulnerability