Buffer overflow in Linuxptp Project
CVE-2021-3570
A flaw was found in the ptp4l program of the linuxptp package. A missing length check when forwarding a PTP message between ports allows a remote attacker to cause an information leak, crash, or potentially remote code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability. This flaw affects linuxptp versions before 3.1.1, before 2.0.1, before 1.9.3, before 1.8.1, before 1.7.1, before 1.6.1 and before 1.5.1.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (87.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000
Affected products
- Linuxptp Project
- Debian Linux — versions 10.0
- Fedoraproject Fedora — versions 33, 34
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Red Hat Enterprise Linux Aus — versions 8.2, 8.4
- Red Hat Enterprise Linux Eus — versions 8.1, 8.2
- Red Hat Enterprise Linux Tus — versions 8.2, 8.4
- Linuxptp — versions linuxptp 3.1.1, linuxptp 2.0.1, linuxptp 1.9.3, linuxptp 1.8.1, linuxptp 1.7.1, linuxptp 1.6.1, linuxptp 1.5.1
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.debian.org/security/2021/dsa-4938 (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/07/msg00025.html (mailing-list, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-3570?
- CVE-2021-3570 is a high-severity vulnerability in Linuxptp Project, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2021-07-09.
- How severe is CVE-2021-3570?
- High severity. CVSS v3 base score is 8.8 out of 10.