Git through 2.14.2 mishandles layers of tree objects, which allows remote attackers to cause a denial of service (memory consumption) via a crafted repository, aka a Git bomb. This can also have an impact of disk consumption; however, an affected process typically would not survive its attempt to build the data structure in memory before writing to disk.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-15298 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 3.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L |
| Attack Vector | Local |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | Low |
| Platform | Package | State |
|---|---|---|
| Red Hat Software Collections for Red Hat Enterprise Linux | rh-git29-git | Will not fix |
| Red Hat Mobile Application Platform On-Premise 4 | fh-scm | Will not fix |
| Red Hat JBoss Fuse Service Works 6 | jgit | Will not fix |
| Red Hat JBoss Fuse 6 | camel | Will not fix |
| Red Hat JBoss Data Virtualization 6 | jgit | Will not fix |
| Red Hat JBoss BRMS 6 | jgit | Will not fix |
| Red Hat JBoss BPMS 6 | jgit | Will not fix |
| Red Hat JBoss A-MQ 6 | fabric8 | Will not fix |
| Red Hat Enterprise Linux 7 | git | Will not fix |
| Red Hat Enterprise Linux 6 | git | Will not fix |
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