Vulnerability identifier: #VU13843
Vulnerability risk: Low
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
libgit2
Universal components / Libraries /
Libraries used by multiple products
Vendor: libgit2.github.com
Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to a missing check in the git_delta_apply function, as defined in the delta.c file. A remote unauthenticated attacker can trick the victim into opening a specially crafted binary delta file, trigger an out-of-bounds read condition and cause the service to crash.
Mitigation
Update to version 0.26.5 or 0.27.3.
Vulnerable software versions
libgit2: 0.24.4.0 - 0.27.2
External links
http://github.com/libgit2/libgit2/commit/9844d38bed10e9ff17174434b3421b227ae710f3remote
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.