CVE-2020-24658

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Summary

CVECVE-2020-24658
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-24 18:15:00 UTC
Updated2021-07-21 11:39:00 UTC
DescriptionArm Compiler 5 through 5.06u6 has an error in a stack protection feature designed to help spot stack-based buffer overflows in local arrays. When this feature is enabled, a protected function writes a guard value to the stack prior to (above) any vulnerable arrays in the stack. The guard value is checked for corruption on function return; corruption leads to an error-handler call. In certain circumstances, the reference value that is compared against the guard value is itself also written to the stack (after any vulnerable arrays). The reference value is written to the stack when the function runs out of registers to use for other temporary data. If both the reference value and the guard value are written to the stack, then the stack protection will fail to spot corruption when both values are overwritten with the same value. For both the reference value and the guard value to be corrupted, there would need to be both a buffer overflow and a buffer underflow in the vulnerable arrays (or some other vulnerability that causes two separated stack entries to be corrupted).

Risk And Classification

Problem Types: CWE-787 | CWE-770

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Arm Arm Compiler All All All All
Application Arm Arm Compiler 5.06 - All All
Application Arm Arm Compiler 5.06 update1 All All
Application Arm Arm Compiler 5.06 update2 All All
Application Arm Arm Compiler 5.06 update3 All All
Application Arm Arm Compiler 5.06 update4 All All
Application Arm Arm Compiler 5.06 update5 All All
Application Arm Arm Compiler 5.06 update6 All All
Application Arm Arm Compiler 5.06 update7 All All
Application Arm Arm Compiler All All All All
Application Arm Arm Compiler 5.06 - All All
Application Arm Arm Compiler 5.06 update1 All All
Application Arm Arm Compiler 5.06 update2 All All
Application Arm Arm Compiler 5.06 update3 All All
Application Arm Arm Compiler 5.06 update4 All All
Application Arm Arm Compiler 5.06 update5 All All
Application Arm Arm Compiler 5.06 update6 All All
Application Arm Arm Compiler 5.06 update7 All All

References

ReferenceSourceLinkTags
Arm Security Updates | Arm Compiler 5 stack protection – Arm Developer CONFIRM developer.arm.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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