Integer overflow in Libgit2
CVE-2018-8098
Integer overflow in the index.c:read_entry() function while decompressing a compressed prefix length in libgit2 before v0.26.2 allows an attacker to cause a denial of service (out-of-bounds read) via a crafted repository index file.
Vulnerability class: Integer Overflow
EPSS: 0.014 (69.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Libgit2
- Debian Debian_linux — versions 9.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-8098?
- CVE-2018-8098 is a medium-severity vulnerability in Libgit2, classified under Integer Overflow or Wraparound. CVSS score: 6.5/10. Published 2018-03-14.
- How severe is CVE-2018-8098?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2018-8098 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.