CVE-2019-8046

published 2019-08-20

CVE-2019-8046: 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…

Priority P2 67 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

EXPLOIT

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 a heap overflow vulnerability. Successful exploitation could lead to arbitrary code execution .

Affected

7 ranges

Vendor	Product	Version range	Fixed in
adobe	acrobat_dc	>= 15.006.30060 < 15.006.30499	15.006.30499
adobe	acrobat_dc	>= 15.008.20082 < 19.012.20036	19.012.20036
adobe	acrobat_dc	>= 17.011.30059 < 17.011.30144	17.011.30144
adobe	acrobat_reader_dc	>= 15.006.30060 < 15.006.30499	15.006.30499
adobe	acrobat_reader_dc	>= 15.008.20082 < 19.012.20036	19.012.20036
adobe	acrobat_reader_dc	>= 17.011.30059 < 17.011.30144	17.011.30144
adobe	adobe_acrobat_and_reader	—	—

Detection & IOCs extracted from sources · hover to see the quote

url https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/47277.zip↗

• → Crash triggered by opening a malformed PDF containing a JP2 image stream with a single mutated byte at offset 0x264a67 changed from 0x00 to 0xFE; look for PDF files with anomalous JP2 streams triggering JP2KLib!JP2KCopyRect heap overflow. ↗
• → Access violation occurs in JP2KLib!JP2KCopyRect+0x17ce9 attempting to write outside a heap buffer; process crash in AcroRd32.exe with faulting module JP2KLib.dll is a strong indicator of exploitation attempt. ↗
• → Exploit entry point is JP2KImageDecodeTileInterleaved in JP2KLib.dll; monitor for AcroRd32.exe crashing with JP2KLib!JP2KImageDecodeTileInterleaved on the call stack when opening PDF files. ↗
• → Crash reproduces on Adobe Acrobat Reader DC version 2019.012.20035 on Windows 10; this specific version string can be used to scope detection rules. ↗

• · The PoC crash is triggered immediately upon opening the malformed PDF; exploitation requires user interaction (opening the file) and affects only the listed vulnerable versions of Adobe Acrobat and Reader. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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