CVE-2019-18683: broadcom fabric_operating_system
Vulnerability summary
CVE-2019-18683 is a high (CVSS 7.0) vulnerability in broadcom fabric_operating_system. EPSS estimates a 0.99% chance of exploitation in the next 30 days, higher than 62.6% of scored vulnerabilities. 2 public exploits are recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 19Timeline
- 04-11-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in drivers/media/platform/vivid in the Linux kernel through 5.3.8. It is exploitable for privilege escalation on some Linux distributions where local users have /dev/video0 access, but only if the driver happens to be loaded. There are multiple race conditions during streaming stopping in this driver (part of the V4L2 subsystem). These issues are caused by wrong mutex locking in vivid_stop_generating_vid_cap(), vivid_stop_generating_vid_out(), sdr_cap_stop_streaming(), and the corresponding kthreads. At least one of these race conditions leads to a use-after-free.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.0HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.99%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.99% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (openwall.com)
Maturity: unknown
Exploit Reference (openwall.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
- CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu34 products
- linux< 4.4.0-173.203 | < 4.15.0-88.88
- linux-aws< 4.4.0-1061.65 | < 4.4.0-1101.112 | < 4.15.0-1060.62
- linux-aws-5.0< 5.0.0-1024.27~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
- linux-aws-hwe< 4.15.0-1060.62~16.04.1
Netapp13 products
Debian2 products
- linux< 5.3.15-1
- debian_linuxEOL8.0
Broadcom1 product
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 19.10
Linux1 product
- linux_kernel≥ 3.18, < 4.4.204 | ≥ 4.5, < 4.9.204 | ≥ 4.10, < 4.14.157 | ≥ 4.15, < 4.19.87 | ≥ 4.20, < 5.3.14 | ≥ 5.4, < 5.4.1
Opensuse1 product
- leapEOL15.1
7 vendors · 53 products
References
24 links- www.openwall.com/lists/oss-security/2019/11/02/1X Refsource MISCREPORTExploitMailing ListThird Party Advisory
- www.openwall.com/lists/oss-security/2019/11/05/1Mailing ListX Refsource MLISTExploitThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
Show all 24 references
lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing ListX Refsource MLISTThird Party Advisory