CVE-2021-47326

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47326
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
CVSS

No CVSS.

References

No reference.

Configurations

No configuration.

History

23 May 2024, 14:15

Type Values Removed Values Added
Summary (en) In the Linux kernel, the following vulnerability has been resolved: x86/signal: Detect and prevent an alternate signal stack overflow The kernel pushes context on to the userspace stack to prepare for the user's signal handler. When the user has supplied an alternate signal stack, via sigaltstack(2), it is easy for the kernel to verify that the stack size is sufficient for the current hardware context. Check if writing the hardware context to the alternate stack will exceed it's size. If yes, then instead of corrupting user-data and proceeding with the original signal handler, an immediate SIGSEGV signal is delivered. Refactor the stack pointer check code from on_sig_stack() and use the new helper. While the kernel allows new source code to discover and use a sufficient alternate signal stack size, this check is still necessary to protect binaries with insufficient alternate signal stack size from data corruption. (en) Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
References
  • {'url': 'https://git.kernel.org/stable/c/00fcd8f33e9b9f57115c3b1cfc4cb96450c18796', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/2beb4a53fc3f1081cedc1c1a198c7f56cc4fc60c', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/74569cb9ed7bc60e395927f55d3dc3be143a0164', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/74d6fcea1d896800e60f1c675137efebd1a6c9a6', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}
  • {'url': 'https://git.kernel.org/stable/c/afb04d0b5543a5bf8e157b9119fbfc52606f4c11', 'source': '416baaa9-dc9f-4396-8d5f-8c081fb06d67'}

21 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 15:15

Updated : 2024-05-23 14:15

NVD link : CVE-2021-47326

Mitre link : CVE-2021-47326

CVE.ORG link : CVE-2021-47326

JSON object : View

Products Affected

No product.

CWE

No CWE.