A heap address information leak while using L2CAP_GET_CONF_OPT was discovered in the Linux kernel before 5.1-rc1.
- Published
- Apr 11, 2019
- Updated
- Jun 16, 2026
- EPSS
- 1.8% · 78th percentile
- CWE
- CWE-125
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 1.8%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| redhat | codeready linux builder | cpe:2.3:a:redhat:codeready_linux_builder |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux for real time | cpe:2.3:o:redhat:enterprise_linux_for_real_time |
| redhat | enterprise linux for real time for nfv | cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv |
| redhat | enterprise linux for real time for nfv tus | cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus |
| redhat | enterprise linux for real time tus | cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
and 4 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- canonical ubuntu linux18.10
- debian debian linux8.0
- linux linux kernelup to 5.1 inclusive
- redhat codeready linux builder8.0
- redhat enterprise linux5.0
- redhat enterprise linux6.0
- redhat enterprise linux7.0
- redhat enterprise linux8.0
- redhat enterprise linux desktop7.0
- redhat enterprise linux eus8.1
- redhat enterprise linux eus8.2
- redhat enterprise linux eus8.4
- redhat enterprise linux for real time7
- redhat enterprise linux for real time8
- redhat enterprise linux for real time for nfv7
- redhat enterprise linux for real time for nfv8
- redhat enterprise linux for real time for nfv tus8.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (debian). Independent of NVD's CPE analysis and usually ahead of it.
Linux Linux
- before 5.1-rc1, fixed in 5.1-rc1affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 4.19.37-1 | 4.19.37-1 |
| Debian:8 | linux | before 3.16.68-1 | 3.16.68-1 |
| Debian:8 | linux-4.9 | before 4.9.168-1~deb8u1 | 4.9.168-1~deb8u1 |
| openSUSE:Leap 15.0 | kernel-source | before 4.12.14-lp150.12.48.1 | 4.12.14-lp150.12.48.1 |
| Red Hat:enterprise_linux:7::server | kernel | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-abi-whitelists | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-alt | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-bootwrapper | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-debug | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-debug-debuginfo | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-debug-devel | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-debuginfo | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-debuginfo-common-ppc64le | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-devel | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-doc | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-tools | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-tools-debuginfo | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-tools-libs | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | kernel-tools-libs-devel | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | perf | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | perf-debuginfo | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | python-perf | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:7::server | python-perf-debuginfo | before 0:4.14.0-115.18.1.el7a | 0:4.14.0-115.18.1.el7a |
| Red Hat:enterprise_linux:8::nfv | kernel-rt | before 0:4.18.0-147.rt24.93.el8 | 0:4.18.0-147.rt24.93.el8 |
+62
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
- CVE-2019-13272In the Linux kernel before 5.1.17, ptrace_link in kernel/ptrace.c mishandles the recording of the credentials of a process that wants to creKEV77This week
- CVE-2013-6282The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the v6k and v7 ARM platforms do not validate certain addKEV77This week
- CVE-2013-2094The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows loKEV77This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:linux | 4.19.37-1 · Debian:12 | Package registry (OSV) |
| debian:linux-4.9 | 4.9.168-1~deb8u1 · Debian:8 | Package registry (OSV) |
| opensuse:kernel-source | 4.12.14-lp150.12.48.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:kernel-rt | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-core | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-core | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-debuginfo | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-devel | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-kvm | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-kvm-debuginfo | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debug-modules-extra | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| red hat:kernel-rt-debuginfo-common-x86_64 | 0:4.18.0-147.rt24.93.el8 · Red Hat:enterprise_linux:8::nfv | Package registry (OSV) |
| suse:kernel-default | 4.4.121-92.101.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kernel-docs | 4.4.175-94.79.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
| suse:kernel-obs-build | 4.4.175-94.79.1 · SUSE:Linux Enterprise Software Development Kit 12 SP3 | Package registry (OSV) |
| suse:kernel-rt | 4.4.172-3.35.1 · SUSE:Linux Enterprise Real Time 12 SP3 | Package registry (OSV) |
| suse:kernel-rt_debug | 4.4.172-3.35.1 · SUSE:Linux Enterprise Real Time 12 SP3 | Package registry (OSV) |
| suse:kernel-source | 4.4.121-92.101.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kernel-source-rt | 4.4.172-3.35.1 · SUSE:Linux Enterprise Real Time 12 SP3 | Package registry (OSV) |
| suse:kernel-syms | 4.4.121-92.101.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kernel-syms-rt | 4.4.172-3.35.1 · SUSE:Linux Enterprise Real Time 12 SP3 | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP2_Update_27 | 1-3.3.1 · SUSE:OpenStack Cloud 7 | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP3_Update_23 | 1-4.7.1 · SUSE:Linux Enterprise Live Patching 12 SP3 | Package registry (OSV) |
| suse:kgraft-patch-SLE12-SP4_Update_3 | 1-6.7.1 · SUSE:Linux Enterprise Live Patching 12 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone on the same network segment can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Adjacent
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-125 · Out-of-bounds ReadCVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- www.openwall.com/lists/oss-security/2019/06/27/2
- www.openwall.com/lists/oss-security/2019/06/27/7
- www.openwall.com/lists/oss-security/2019/06/28/1
- www.openwall.com/lists/oss-security/2019/06/28/2
- www.openwall.com/lists/oss-security/2019/08/12/1
- access.redhat.com/errata/RHSA-2019:2029
- access.redhat.com/errata/RHSA-2019:2043
- access.redhat.com/errata/RHSA-2019:3309
- access.redhat.com/errata/RHSA-2019:3517
- access.redhat.com/errata/RHSA-2020:0740
- bugzilla.novell.com/show_bug.cgi?id=1120758
- bugzilla.redhat.com/show_bug.cgi?id=1663176
- git.kernel.org/linus/7c9cbd0b5e38a1672fcd137894ace3b042dfbf69
- lists.debian.org/debian-lts-announce/2019/05/msg00002.html
- lists.debian.org/debian-lts-announce/2019/05/msg00041.html
- lists.debian.org/debian-lts-announce/2019/05/msg00042.html
- lore.kernel.org/linux-bluetooth/20190110062833.GA15047%40kroah.com/
- people.canonical.com/~ubuntu-security/cve/2019/CVE-2019-3459.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.