cbcvebase.
CVE-2019-8024
published 2019-08-20

CVE-2019-8024: Adobe Acrobat and Reader versions 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier…

PriorityP263critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
15.12%
96.3th percentile
Adobe Acrobat and Reader versions 2019.012.20035 and earlier, 2019.012.20035 and earlier, 2017.011.30142 and earlier, 2017.011.30143 and earlier, 2015.006.30497 and earlier, and 2015.006.30498 and earlier have an use after free vulnerability. Successful exploitation could lead to arbitrary code execution .

Affected

7 ranges
VendorProductVersion rangeFixed in
adobeacrobat_dc>= 15.006.30060 < 15.006.3049915.006.30499
adobeacrobat_dc>= 15.008.20082 < 19.012.2003619.012.20036
adobeacrobat_dc>= 17.011.30059 < 17.011.3014417.011.30144
adobeacrobat_reader_dc>= 15.006.30060 < 15.006.3049915.006.30499
adobeacrobat_reader_dc>= 15.008.20082 < 19.012.2003619.012.20036
adobeacrobat_reader_dc>= 17.011.30059 < 17.011.3014417.011.30144
adobeadobe_acrobat_and_reader

Detection & IOCsextracted from sources · hover to see the quote

urlhttps://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/47271.zip
processAcroRd32.exe
  • Crash triggered immediately upon opening a malformed PDF containing a JP2 image stream with 2 mutated bytes; monitor AcroRd32.exe for access violations (code c0000005) originating from AcroRd32!AX_PDXlateToHostEx or JP2KLib!JP2KTileGeometryRegionIsTile during PDF open events.
  • For poc1.pdf, the malicious mutations are at byte offsets 0x290a and 0x298b inside binary JP2 image streams; for poc2.pdf at offsets 0x5b4 and 0x62a. Scan suspicious PDFs for JP2 streams with anomalous bytes at these relative offsets.
  • Without PageHeap the crash manifests in ntdll!RtlReportCriticalFailure; detection on production systems should look for AcroRd32.exe crashing with an unhandled exception referencing ntdll!RtlReportCriticalFailure shortly after PDF open.
  • The freed object is released via JP2KLib!JP2KTileGeometryRegionIsTile and then accessed in AcroRd32!AX_PDXlateToHostEx; EDR/crash telemetry showing this call chain in AcroRd32.exe is a strong indicator of CVE-2019-8024 exploitation.
  • ·Crash reproduces most cleanly with Light PageHeap enabled in Application Verifier for AcroRd32.exe; without PageHeap the crash location differs (ntdll!RtlReportCriticalFailure), so detection signatures based on crash address may vary by environment.
  • ·Affected versions span multiple Adobe Acrobat/Reader tracks (2015, 2017, 2019 Classic and Continuous); ensure version-based detections cover all listed tracks up to and including 2019.012.20035, 2017.011.30143, and 2015.006.30498.

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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