CVE-2019-8044

published 2019-08-20

CVE-2019-8044: 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 63 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 double free 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/47279.zip↗

• → Crash triggered immediately upon opening a malformed PDF containing a JP2 image stream with a single-byte mutation at file offset 0x172b4 (byte changed from 0x1C to 0xFF); monitor AcroRd32 for double-free heap corruption on PDF open. ↗
• → Double-free occurs in AcroRd32.dll within CTJPEGTiledContentWriter and AX_PDXlateToHostEx call chain when processing a malformed JP2 stream inside a PDF; look for heap block already freed verifier stops in AcroRd32 process. ↗
• → The vulnerability is triggered by a malformed JP2 (JPEG 2000) image stream embedded in a PDF; detect PDFs with anomalous JP2 stream data as a suspicious indicator. ↗
• → Crash reproduces on Adobe Acrobat Reader DC version 2019.012.20035 on Windows 10; flag execution of this specific version opening external PDF files. ↗

• · Exploitation requires the target to open a specially crafted PDF file; the crash occurs immediately upon opening the document, requiring no further user interaction beyond file open. ↗
• · The PoC was confirmed with PageHeap (Application Verifier) enabled; behaviour on standard production systems without heap verification may differ in crash manifestation. ↗

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

CVEs like this are exactly what “Exploited This Week” covers.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.

CWE-415