CVE-2020-11608: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2020-11608 is a medium (CVSS 4.9) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.2% of scored vulnerabilities.
Not severe (CVSS 4.3, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 9Timeline
- 07-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the Linux kernel before 5.6.1. drivers/media/usb/gspca/ov519.c allows NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints, aka CID-998912346c0d.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST4.3MediumCVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.51%
Chance of exploitation in the next 30 days
Percentile
43%
Versus all other CVEs
30-day change
Decrease -0.03 pp
From 0.53% 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
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: physical access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu36 products
- linuxAll versions (No fix recorded) | < 4.4.0-179.209 | < 4.15.0-99.100
- linux-aws< 4.4.0-1067.71 | < 4.4.0-1107.118 | < 4.15.0-1066.70
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1019.21~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Canonical1 product
- ubuntu_linuxEOL16.04 | 18.04
Debian1 product
- linux< 5.5.17-1
Linux1 product
- linux_kernel< 5.6.1
4 vendors · 39 products
References
22 links- github.com/torvalds/linux/commit/998912346c0da53a6dbb71fab3a138586b596b30X Refsource MISCREPORTPatchThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1X Refsource MISCREPORTMailing ListPatchVendor Advisory
