PT-2019-6388 · Oracle+9 · Mysql Server+8
Published
2019-05-26
·
Updated
2025-07-15
·
CVE-2019-17543
CVSS v2.0
9.3
High
| Vector | AV:N/AC:M/Au:N/C:C/I:C/A:C |
Name of the Vulnerable Software and Affected Versions
LZ4 versions prior to 1.9.2
MySQL Server versions 5.7.34 and earlier
MySQL Server versions 8.0.25 and earlier
Description
The issue is related to a heap-based buffer overflow in the LZ4 compression algorithm, specifically in the LZ4 write32 function, which can lead to data corruption. This can be exploited by a remote attacker to gain access to confidential data, compromise data integrity, and cause a denial of service. The vendor notes that only a few specific and uncommon usages of the API are at risk.
Recommendations
For LZ4 versions prior to 1.9.2, update to version 1.9.2 or later to resolve the issue.
For MySQL Server versions 5.7.34 and earlier, update to a version later than 5.7.34.
For MySQL Server versions 8.0.25 and earlier, update to a version later than 8.0.25.
As a temporary workaround, consider restricting the use of the LZ4 compression algorithm until a patch is available.
Exploit
Fix
DoS
RCE
Memory Corruption
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Lz4
Mysql Server
Red Hat
Rocky Linux
Suse