Vulnerability in Libseccomp Project
CVE-2019-9893
libseccomp before 2.4.0 did not correctly generate 64-bit syscall argument comparisons using the arithmetic operators (LT, GT, LE, GE), which might able to lead to bypassing seccomp filters and potential privilege escalations.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.030 (87.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.4% 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
Public proof-of-concept exploits
References
- github.com/seccomp/libseccomp/issues/139 (Patch)
- seclists.org/oss-sec/2019/q1/179 (Patch, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/201904-18 (vendor-advisory)
- usn.ubuntu.com/4001-1/ (vendor-advisory)
- usn.ubuntu.com/4001-2/ (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00022.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2019-10/msg00027.html (vendor-advisory)
- access.redhat.com/errata/RHSA-2019:3624 (vendor-advisory)
Frequently asked questions
- What is CVE-2019-9893?
- CVE-2019-9893 is a critical-severity vulnerability in Libseccomp Project. CVSS score: 9.8/10. Published 2019-03-21.
- How severe is CVE-2019-9893?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2019-9893 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.