CVE-2019-17543

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

9.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 94.8% of scored records. A rank, not a probability.

NVD base score

8.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2019-10-14 01:09Z6 YR AGO

Last updated

2024-08-05 01:40Z2 YR AGO

Reserved

2019-10-14

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

4a0b2690fbdd1faa9eb512c3dc4b4ac899a35067803d0f5d492fe7d8718e006c

• lists.apache.org[arrow-issues] 20191024 [jira] [Created] (ARROW-6984) Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/9ff0606d16be2ab6a81619e1c9e23c3e251756638e36272c8c8b7fa3%40%3Cissues.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[arrow-dev] 20191024 [jira] [Created] (ARROW-6984) Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/f506bc371d4a068d5d84d7361293568f61167d3a1c3e91f0def2d7d3%40%3Cdev.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[arrow-issues] 20191024 [jira] [Updated] (ARROW-6984) [C++] Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/793012683dc0fa6819b7c2560e6cf990811014c40c7d75412099c357%40%3Cissues.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[arrow-issues] 20191024 [jira] [Assigned] (ARROW-6984) [C++] Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/f0038c4fab2ee25aee849ebeff6b33b3aa89e07ccfb06b5c87b36316%40%3Cissues.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[arrow-issues] 20191025 [jira] [Commented] (ARROW-6984) [C++] Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/25015588b770d67470b7ba7ea49a305d6735dd7f00eabe7d50ec1e17%40%3Cissues.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.opensuse.orgopenSUSE-SU-2019:2399http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00070.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2019:2398http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00069.htmlvendor-advisoryx_refsource_SUSE
• lists.apache.org[arrow-issues] 20191106 [jira] [Resolved] (ARROW-6984) [C++] Update LZ4 to 1.9.2 for CVE-2019-17543https://lists.apache.org/thread.html/543302d55e2d2da4311994e9b0debdc676bf3fd05e1a2be3407aa2d6%40%3Cissues.arrow.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[kudu-issues] 20200621 [jira] [Updated] (KUDU-3156) Whether the CVE-2019-17543 vulnerability of lz affects kuduhttps://lists.apache.org/thread.html/r7bc72200f94298bc9a0e35637f388deb53467ca4b2e2ad1ff66d8960%40%3Cissues.kudu.apache.org%3Emailing-listx_refsource_MLIST
• lists.apache.org[kudu-issues] 20200709 [jira] [Resolved] (KUDU-3156) Whether the CVE-2019-17543 vulnerability of lz affects kuduhttps://lists.apache.org/thread.html/r4068ba81066792f2b4d208b39c4c4713c5d4c79bd8cb6c1904af5720%40%3Cissues.kudu.apache.org%3Emailing-listx_refsource_MLIST
• www.oracle.comhttps://www.oracle.com/security-alerts/cpuoct2020.htmlx_refsource_MISC
• github.comhttps://github.com/lz4/lz4/pull/756x_refsource_MISC
• github.comhttps://github.com/lz4/lz4/pull/760x_refsource_MISC
• github.comhttps://github.com/lz4/lz4/compare/v1.9.1...v1.9.2x_refsource_MISC
• bugs.chromium.orghttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15941x_refsource_MISC
• github.comhttps://github.com/lz4/lz4/issues/801x_refsource_MISC
• lists.apache.orghttps://lists.apache.org/thread.html/r0fb226357e7988a241b06b93bab065bcea2eb38658b382e485960e26%40%3Cissues.kudu.apache.org%3Ex_refsource_MISC
• www.oracle.comhttps://www.oracle.com//security-alerts/cpujul2021.htmlx_refsource_MISC
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20210723-0001/x_refsource_CONFIRM