Home/CVE/Insufficient boundary checks when processing M_SOFx markers from JPEG headers in the GD extension could allow access to
CVE

CVE-2019-11926

Insufficient boundary checks when processing M_SOFx markers from JPEG headers in the GD extension could allow access to

Insufficient boundary checks when processing M_SOFx markers from JPEG headers in the GD extension could allow access to out-of-bounds memory via a maliciously constructed invalid JPEG input. This issue affects HHVM versions prior to 3.30.9, all versions between 4.0.0 and 4.8.3, all versions between 4.9.0 and 4.15.2, and versions 4.16.0 to 4.16.3, 4.17.0 to 4.17.2, 4.18.0 to 4.18.1, 4.19.0, 4.20.0 to 4.20.1.

CRITICAL · CVSS 9.8 EPSS 0.00974
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

8
facebook hhvm<= 3.30.9
facebook hhvm>= 4.0.0 and <= 4.8.3
facebook hhvm>= 4.9.0 and <= 4.15.2
facebook hhvm>= 4.16.0 and <= 4.16.3
facebook hhvm>= 4.17.0 and <= 4.17.2
facebook hhvm>= 4.18.0 and <= 4.18.1
facebook hhvm>= 4.20.0 and <= 4.20.1
facebook hhvmall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.0 · cve-assign@fb.com
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 NVD06 Sep 2019 · 07:15 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/facebook/hhvm/commit/f9680d21beaa9eb39d166e8810e29fbafa51ad15PatchThird Party Advisory
https://hhvm.com/blog/2019/09/03/security-update.htmlThird Party Advisory
https://www.facebook.com/security/advisories/cve-2019-11926Vendor Advisory
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