CVE-2024-36889

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure snd_nxt is properly initialized on connect Christoph reported a splat hinting at a corrupted snd_una: WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Modules linked in: CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 Workqueue: events mptcp_worker RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005 Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8 8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe <0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9 RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4 RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000 R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000 FS: 0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0 Call Trace: <TASK> __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline] mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline] __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615 mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767 process_one_work+0x1e0/0x560 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x3c7/0x640 kernel/workqueue.c:3416 kthread+0x121/0x170 kernel/kthread.c:388 ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243 </TASK> When fallback to TCP happens early on a client socket, snd_nxt is not yet initialized and any incoming ack will copy such value into snd_una. If the mptcp worker (dumbly) tries mptcp-level re-injection after such ack, that would unconditionally trigger a send buffer cleanup using 'bad' snd_una values. We could easily disable re-injection for fallback sockets, but such dumb behavior already helped catching a few subtle issues and a very low to zero impact in practice. Instead address the issue always initializing snd_nxt (and write_seq, for consistency) at connect time.

Publication date: Thu, 30 May 2024 16:15:00 +0000


Cyber News related to CVE-2024-36889

AWS LetsEncrypt Lambda: Custom TLS Provider - DZone - Trying to renew ... INFO[0000] Checking certificate for domain 'hackernoon.referrs.me' with arn 'arn:aws:acm:us-east-2:004867756392:certificate/72f872fd-e577-43f4-ae38-6833962630af' INFO[0000] Certificate status is 'ISSUED' INFO[0000] Certificate in ...
1 month ago Feeds.dzone.com
Vulnerability Summary for the Week of March 11, 2024 - Published 2024-03-15 CVSS Score not yet calculated Source & Patch Info CVE-2021-47111416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - Product linux - linux Description In the ...
8 months ago Cisa.gov
Vulnerability Summary for the Week of March 4, 2024 - Published 2024-03-06 CVSS Score not yet calculated Source & Patch Info CVE-2023-52584416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67416baaa9-dc9f-4396-8d5f-8c081fb06d67 PrimaryVendor - ...
8 months ago Cisa.gov
CVE-2024-36889 - In the Linux kernel, the following vulnerability has been resolved: ...
4 months ago
CVE-2024-37051 - GitHub access token could be exposed to third-party sites in JetBrains IDEs after version 2023.1 and less than: IntelliJ IDEA 2023.1.7, 2023.2.7, 2023.3.7, 2024.1.3, 2024.2 EAP3; Aqua 2024.1.2; CLion 2023.1.7, 2023.2.4, 2023.3.5, 2024.1.3, 2024.2 ...
5 months ago Tenable.com
CVE-2021-36889 - Multiple Stored Authenticated Cross-Site Scripting (XSS) vulnerabilities were discovered in tarteaucitron.js – Cookies legislation & GDPR WordPress plugin (versions < 1.6). ...
2 years ago
CVE-2023-36889 - Windows Group Policy Security Feature Bypass Vulnerability ...
1 year ago
CVE-2022-36889 - Jenkins Deployer Framework Plugin 85.v1d1888e8c021 and earlier does not restrict the application path of the applications when configuring a deployment, allowing attackers with Item/Configure permission to upload arbitrary files from the Jenkins ...
1 year ago
The Top 24 Security Predictions for 2024 - Welcome to the second installment of this comprehensive annual look at global cybersecurity industry predictions from the top security industry vendors, technology magazines, expert thought leaders and many more. Last week, in part one of The Top 24 ...
10 months ago Securityboulevard.com
CVE-2024-9256 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9255 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9254 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9253 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9252 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9251 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9250 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9246 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
CVE-2024-9243 - Addressed potential issues where the application could be exposed to a Use-After-Free vulnerability and crash when handling certain checkbox field objects, Doc objects, Annotation objects, or AcroForms, which attackers could exploit to execute remote ...
1 month ago Tenable.com
Securing Gold: Assessing Cyber Threats on Paris 2024 - The next Olympic Games hosted in Paris will take place from 26 July to 11 August 2024, while the Paralympic Games will be carried out from 28 August to 8 September 2024. Paris 2024 estimated the number of spectators for the next edition to be 9,7 ...
10 months ago Blog.sekoia.io
Microsoft Office 2024 now available for Windows and macOS users - As announced earlier in September, starting in Office 2024, Microsoft will also turn off ActiveX controls by default in Word, Excel, PowerPoint, and Visio client apps, a measure likely prompted by ActiveX's well-known security issues. Last month, ...
1 month ago Bleepingcomputer.com
Critical Zimbra Postjournal flaw CVE-2024-45519 actively exploited in the wild. Patch it now! - “Beginning on September 28, @Proofpoint began observing attempts to exploit CVE-2024-45519, a remote code execution vulnerability in Zimbra mail servers. Beginning on September 28, @Proofpoint began observing attempts to exploit CVE-2024-45519, ...
1 month ago Securityaffairs.com
The Top 24 Security Predictions for 2024 - For 2024, top topics range from upcoming elections to regional wars to space exploration to advances in AI. And with technology playing a more central role in every area of life, annual cybersecurity prediction reports, cyber industry forecasts and ...
11 months ago Securityboulevard.com
Ransomware Attack Demands Reach a Staggering $5.2m in 2024 - The average extortion demand per ransomware attack was over $5.2m in the first half of 2024, according to a new analysis by Comparitech. This figure was calculated from 56 known ransom demands issued by threat actors from January-June 2024. The ...
4 months ago Infosecurity-magazine.com
Patch Now: Critical Windows Kerberos Bug Bypasses Microsoft Security - Microsoft eased enterprise security teams into 2024 with a relatively light January security update consisting of patches for 48 unique CVEs, just two of which the company identified as being of critical severity. For the second straight month, ...
10 months ago Darkreading.com
Threat Brief: CVE-2024-6387 OpenSSH RegreSSHion Vulnerability - On July 1, 2024, a critical signal handler race condition vulnerability was disclosed in OpenSSH servers on glibc-based Linux systems. Using Palo Alto Networks Xpanse data, we observed 23 million instances of OpenSSH servers including all versions. ...
4 months ago Unit42.paloaltonetworks.com

Latest Cyber News


Cyber Trends (last 7 days)


Trending Cyber News (last 7 days)