Adobe Issues Out-of-Band Patch for Critical Flash Player Vulnerability (CVE-2018-15981)
Adobe has released an out-of-band patch for a critical Flash Player vulnerability. Users are encouraged to upgrade as soon as possible.
背景
On November 20, Adobe released APSB18-44, an out-of-band (OOB) security bulletin to address a zero day vulnerability in Adobe Flash Player versions 31.0.0.148 and earlier for Windows, macOS, Linux and Chrome OS.
This bulletin arrived seven days after Adobe released APSB18-39, it’s monthly security bulletin for November 2018. On the very same day, November 13, researcher Gil Dabah published a blog discussing his discovery of CVE-2018-15981.
It may not seem like a coincidence that both Adobe’s monthly security bulletin and the researcher’s blog were published on the same day. However, Dabah indicated it may just have been a coincidence after all in a tweet:
Kudos to @AdobeSecurity for touching base and working on a fix already.
— Gil Dabah (@_arkon) November 14, 2018
Vulnerability details
In his blog, Dabah shares details about CVE-2018-15981, a type confusion vulnerability in Adobe Flash Player. Specifically, the vulnerability exists in the interpreter code for Adobe’s ActionScript Virtual Machine (AVM). According to Dabah, the AVM’s interpreter “does not reset a with-scope pointer when an exception is caught” which leads to the type confusion and “eventually to a remote code execution.”
User interaction is required to exploit this vulnerability. An attacker would need to convince users to visit a malicious website, compromise a website or advertising network and inject malicious code.
For further technical details about the vulnerability, please visit Dabah’s blog.
Urgently required actions
Upgrade to the latest version of Flash Player for your respective operating system or web browser. Adobe has provided links in the solution section of their security bulletin.
If Adobe Flash is not a requirement in your network or on your devices, you may consider disabling it altogether.
识别受影响的系统
A list of Nessus plugins to identify this vulnerability will appear here as they’re released.
获取更多信息
- Security updates available for Flash Player | APSB18-44
- Flash News (Gil Dabah's blog)
- ADV180030 | November 20, 2018 Flash Updates
Learn more about Tenable, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a free 60-day trial of Tenable.io Vulnerability Management.
相关文章
Strengthening the Nessus Software Supply Chain with SLSA
April 16, 2024You know Tenable as a cybersecurity industry leader whose world-class exposure management products are trusted by our approximately 43,000 customers, including about 60% of the Fortune 500. But sometimes we like to give you a peek behind the curtain to share how we protect our own house against cyberattacks – and that’s what this blog is about. Today we’re sharing our experience adopting the supply-chain security framework SLSA, with the hopes that the lessons we learned will be helpful to you.
Cybersecurity Snapshot: CISA Says Midnight Blizzard Swiped U.S. Gov’t Emails During Microsoft Hack, Tells Fed Agencies To Take Immediate Action
April 12, 2024Check out CISA’s urgent call for federal agencies to protect themselves from Midnight Blizzard’s breach of Microsoft corporate emails. Plus, a new survey shows cybersecurity pros are guardedly optimistic about AI. Meanwhile, SANS pinpoints the four trends CISOs absolutely must focus on this year. And the NSA is sharing best practices for data security. And much more!
Cybersecurity Snapshot: U.S. Gov’t Unpacks AI Threat to Banks, as NCSC Urges OT Teams to Protect Cloud SCADA Systems
March 29, 2024Check out new guidance for banks on combating AI-boosted fraud. Plus, how to cut cyber risk when migrating SCADA systems to the cloud. Meanwhile, why CISA is fed up with SQLi flaws. And best practices to prevent and respond to DDoS attacks. And much more!
Tenable and Thales Collaborate to Provide Cyber Defense Simulations to Better Secure Operational Technology Environments
April 18, 2024The heart of the Welsh Valleys is home to the Thales Ebbw Vale campus, a world-class facility jointly funded by the Welsh government as part of its regeneration program for the region. At the core of the facility is the Cyber Range, a simulation and virtualization platform for training, testing, exercising and R&D. Tenable has joined the lineup of solutions used to run real world simulations in this controlled environment.
Oracle April 2024 Critical Patch Update Addresses 239 CVEs
April 17, 2024Oracle addresses 239 CVEs in its second quarterly update of 2024 with 441 patches, including 38 critical updates.
Strengthening the Nessus Software Supply Chain with SLSA
April 16, 2024You know Tenable as a cybersecurity industry leader whose world-class exposure management products are trusted by our approximately 43,000 customers, including about 60% of the Fortune 500. But sometimes we like to give you a peek behind the curtain to share how we protect our own house against cyberattacks – and that’s what this blog is about. Today we’re sharing our experience adopting the supply-chain security framework SLSA, with the hopes that the lessons we learned will be helpful to you.
- Vulnerability Management