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CVE-2023-53839

UnknownEPSS 0.22%

Last modified

CVE-2023-53839 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.

Metrics

EPSS Probability
0.22%

12.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

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

VendorProductVersions
LinuxLinux>= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < 162fa1e3cfb62aa780d7c40c8cccb6c2f8bef7c1; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < 2bdc7f272b3a110a4e1fdee6c47c8d20f9b20817; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < 67eebc7a9217f999b779d46fba5312a716f0dc1d; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < 6d701c95ee6463abcbb6da543060d6e444554135; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < f239c9e1d98b313435481b4926e8bdd06197e4d8; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < a6ddc1c774874dc704f96a99d015dc759627bba7; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < d1f38d313bdfc52fb2f662e66d0c60dd1cfe2384; >= 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c, < a47e598fbd8617967e49d85c49c22f9fc642704c
LinuxLinux2.6.14

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2023-53839?
In the Linux kernel, the following vulnerability has been resolved: dccp: fix data-race around dp->dccps_mss_cache dccp_sendmsg() reads dp->dccps_mss_cache before locking the socket. Same thing in do_dccp_getsockopt(). Add READ_ONCE()/WRITE_ONCE() annotations, and change dccp_sendmsg() to check again dccps_mss_cache after socket is locked.
How severe is CVE-2023-53839?
Severity scoring for CVE-2023-53839 is pending analysis. The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.
How do I fix CVE-2023-53839?
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