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CVE-2023-54306

HIGHCVSS 7.5/10EPSS 0.19%

Last modified

CVE-2023-54306 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: net: tls: avoid hanging tasks on the tx_lock syzbot sent a hung task report and Eric explains that adversarial receiver may keep RWIN at 0 for a long time, so we are not guaranteed to make forward progress. Thread which took tx_lock and went to sleep may not release tx_lock for hours. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: net: tls: avoid hanging tasks on the tx_lock syzbot sent a hung task report and Eric explains that adversarial receiver may keep RWIN at 0 for a long time, so we are not guaranteed to make forward progress. Thread which took tx_lock and went to sleep may not release tx_lock for hours. Use interruptible sleep where possible and reschedule the work if it can't take the lock. Testing: existing selftest passes

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.19%

8.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < bde541a57b4204d0a800afbbd3d1c06c9cdb133f; >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < 7123a4337bf73132bbfb5437e4dc83ba864a9a1e; >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < be5d5d0637fd88c18ee76024bdb22649a1de00d6; >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < 1f800f6aae57d2d8f63d32fff383017cbc11cf65; >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < ccf1ccdc5926907befbe880b562b2a4b5f44c087; >= 79ffe6087e9145d2377385cac48d0d6a6b4225a5, < f3221361dc85d4de22586ce8441ec2c67b454f5d; c8d6817345f4ba228d07380e571676405e112872; >= 5.3.11, < 5.4
LinuxLinux5.4

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-54306?
In the Linux kernel, the following vulnerability has been resolved: net: tls: avoid hanging tasks on the tx_lock syzbot sent a hung task report and Eric explains that adversarial receiver may keep RWIN at 0 for a long time, so we are not guaranteed to make forward progress. Thread which took tx_lock and went to sleep may not release tx_lock for hours. Use interruptible sleep where possible and reschedule the work if it can't take the lock. Testing: existing selftest passes
How severe is CVE-2023-54306?
CVE-2023-54306 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.
How do I fix CVE-2023-54306?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST