Vulnerability in Apple Macos
CVE-2021-21300
Git is an open-source distributed revision control system. In affected versions of Git a specially crafted repository that contains symbolic links as well as files using a clean/smudge filter such as Git LFS, may cause just-checked out scr…
EPSS: 0.886 (99.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N.
Affected products
- Apple Macos
- Apple Xcode
- Git — versions >= 2.14.2, < 2.17.62.17.6, >= 2.18.0, < 2.18.5, >= 2.19.0, < 2.19.6
- Git-scm Git — versions 2.27.0, 2.28.0
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 32, 33, 34
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com
- security-advisories@github.com (Vendor Advisory)
- security-advisories@github.com (Vendor Advisory)
- security-advisories@github.com (Patch, Third Party Advisory)
- security-advisories@github.com (mailing-list, Exploit, Mailing List, Third Party Advisory)
- security-advisories@github.com (vendor-advisory)
- security-advisories@github.com (vendor-advisory)
- security-advisories@github.com (vendor-advisory)
- security-advisories@github.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-21300?
- CVE-2021-21300 is a high-severity vulnerability in Apple Macos, classified under Improper Link Resolution Before File Access. CVSS score: 8.0/10. Published 2021-03-09.
- How severe is CVE-2021-21300?
- High severity. CVSS v3 base score is 8.0 out of 10.
- Is CVE-2021-21300 known to be exploited?
- 60 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.