Denial of Service in libgit2 Affects Multiple Versions by Git2
CVE-2018-15501

7.5HIGH

Key Information:

Vendor

Debian
Status
Debian Linux
Vendor
CVE Published:
18 August 2018

What is CVE-2018-15501?

An out-of-bounds read vulnerability exists in the 'ng_pkt' function of libgit2, specifically in 'transports/smart_pkt.c'. This issue arises when a specially crafted smart-protocol 'ng' packet is received from a remote attacker, which is missing a terminating '\0' byte. This can lead to a Denial of Service (DoS), affecting the stability and availability of services utilizing the affected versions of libgit2.

References

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9406
x_refsource_MISC
https://github.com/libgit2/libgit2/releases/tag/v0.27.4
x_refsource_MISC
https://www.pro-linux.de/sicherheit/2/44650/denial-of-ser...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.