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The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c.

🗓️ 18 Aug 2020 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

GNU C Library on-stack buffer overflow in range reduction for non canonical 80-bit long double input in sinl.

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microsoftcm1_glibc_2.28-12Range<2.28-12

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18 Aug 2020 07:00Current
7High risk
Vulners AI Score7
CVSS 22.1
CVSS 3.15.5
EPSS0.0005
gnu c libraryon stack bufferrange reductionnon canonical inputlong doubleintel architecture
1