Home/CVE/LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applicati
CVE

CVE-2019-17543

LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applicati

LZ4 before 1.9.2 has a heap-based buffer overflow in LZ4_write32 (related to LZ4_compress_destSize), affecting applications that call LZ4_compress_fast with a large input. (This issue can also lead to data corruption.) NOTE: the vendor states "only a few specific / uncommon usages of the API are at risk.".

HIGH · CVSS 8.1 EPSS 0.0159
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
lz4 project lz4< 1.9.2
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Oct 2019 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

9
suse-csafopenSUSE-SU-2024:11034-1
siemens-csafSSA-398330
suse-csafSUSE-SU-2021:1613-1
suse-csafopenSUSE-SU-2019:2398-1
suse-csafopenSUSE-SU-2019:2399-1
🔗

References & Sources

19
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00069.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00070.html
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15941Third Party Advisory
https://github.com/lz4/lz4/compare/v1.9.1...v1.9.2Third Party Advisory
https://github.com/lz4/lz4/issues/801Third Party Advisory
https://github.com/lz4/lz4/pull/756PatchThird Party Advisory
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