CVE-2021-44710
published 2022-01-14CVE-2021-44710: Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability…
PriorityP348high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
11.61%
95.6th percentile
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| adobe | acrobat | 17.011.30059 – 17.011.30204 | — |
| adobe | acrobat | 20.001.30005 – 20.004.30017 | — |
| adobe | acrobat_dc | 15.008.20082 – 21.007.20099 | — |
| adobe | acrobat_reader | 17.011.30059 – 17.011.30204 | — |
| adobe | acrobat_reader | 20.001.30005 – 20.004.30017 | — |
| adobe | acrobat_reader | unspecified – 21.007.20099 | — |
| adobe | acrobat_reader_dc | 15.008.20082 – 21.007.20099 | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
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Talos
Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution
blogs_talos·2022-01-11·CVSS 7.8
[HIGH] Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution
## Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution
Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw.
Cisco Talos recently discovered two vulnerabilities in Adobe Acrobat Reader DC that could allow an attacker to eventually gain the ability to execute arbitrary code.
Acrobat is one of the most popular PDF reader software options available currently. It includes the ability to read and process JavaScript to give PDFs greater interactivity and customization options for users. Both vulnerabilities exist in the way Acrobat Reader processes JavaScript.
TALOS-2021-1387 (CVE-2021-44710) is a use-after-free vulnerability that is triggered if the user opens a PDF with specially crafted, malicious JavaS
Talos
Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution
blogs_talos·2022-01-11·CVSS 7.8
[HIGH] Vulnerability Spotlight: Two vulnerabilities in Adobe Acrobat DC could lead to arbitrary code execution
Aleksandar Nikolic of Cisco Talos discovered these vulnerabilities. Blog by Jon Munshaw.
Cisco Talos recently discovered two vulnerabilities in Adobe Acrobat Reader DC that could allow an attacker to eventually gain the ability to execute arbitrary code.
Acrobat is one of the most popular PDF reader software options available currently. It includes the ability to read and process JavaScript to give PDFs greater interactivity and customization options for users. Both vulnerabilities exist in the way Acrobat Reader processes JavaScript.
TALOS-2021-1387 (CVE-2021-44710) is a use-after-free vulnerability that is triggered if the user opens a PDF with specially crafted, malicious JavaScript. The code could give attackers control over reused memory, which can lead to arbitrary code execution.
Zscaler
Zscaler protects against 25 Adobe vulnerability | 01-11-2022
blogs_zscaler
Zscaler protects against 25 Adobe vulnerability | 01-11-2022
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Huntress
Use-After-Free Explained: Master the Basics and Stay Secure | Huntress
blogs_huntress
Use-After-Free Explained: Master the Basics and Stay Secure | Huntress
## What’s the deal with use-after-free bugs?
Picture this: you’re done with your hotel room, so you check out. Suddenly, not only does someone else get the key, but you keep walking in and out like you still own the place. Confusing for staff, risky for everyone. That’s what happens with use-after-free in software.
A use-after-free vulnerability occurs when a program accesses a piece of memory that’s already been marked as available for someone else. This bug creeps into programs when memory is freed (released back for the system to reuse), but the software continues to use an old "pointer" (think shortcut or reference) to that memory.
When that memory gets reused for something else, your program might read or write the wrong data.
Even worse, a clever attacker can force your program t
2022-01-14
Published