CVE-2020-8927
Integer overflow in the bundled Brotli C library
Summary
Remediation
Upgrade to the fixed version using your package manager.
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.android-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x86.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-arm.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.linux-x64.Cross.android-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.osx-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x86.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-x64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.osx-x64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvos-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.linux-x64.Cross.android-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvos-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.linux-x64.Cross.android-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x86.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.iossimulator-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.osx-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-arm --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.linux-x64.Cross.android-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.ios-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.osx-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.osx-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.win-arm --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.win-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.iossimulator-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.android-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.maccatalyst-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.android-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.browser-wasm.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.win-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.win-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x86.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x86 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.Mono.osx-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvos-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.browser-wasm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.browser-wasm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.tvos-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.browser-wasm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x86.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.linux-x64.Cross.browser-wasm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x86.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.ios-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.tvossimulator-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.maccatalyst-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-musl-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.osx-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.osx-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-musl-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.browser-wasm.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-arm --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-arm64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-x86.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-x86 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.maccatalyst-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.win-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.linux-arm64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.tvossimulator-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.linux-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.android-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-x64.Msi.arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.osx-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.win-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.browser-wasm --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.linux-arm --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.android-arm.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.browser-wasm.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.linux-x64 --version 3.1.23
dotnet add package Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.iossimulator-arm64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.iossimulator-arm64.Msi.x86 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.browser-wasm.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.LLVM.AOT.linux-x64 --version 5.0.15
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvossimulator-x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.tvos-arm64.Msi.x64 --version 6.0.3
dotnet add package Microsoft.NETCore.App.Runtime.Mono.ios-arm64 --version 6.0.3
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (147)
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-120Buffer Copy Without Checking SizeMITRE
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 6.5 score means for each attack dimension.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-8927ADVISORY
- https://github.com/bitemyapp/brotli2-rs/issues/45WEB
- https://github.com/github/advisory-database/issues/785WEB
- https://github.com/google/brotli/commit/223d80cfbec8fd346e32906c732c8ede21f0cea6WEB
- https://www.debian.org/security/2020/dsa-4801WEB
- https://usn.ubuntu.com/4568-1WEB
- https://rustsec.org/advisories/RUSTSEC-2021-0132.htmlWEB
- https://rustsec.org/advisories/RUSTSEC-2021-0131.htmlWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZXEQ3GQVELA2T4HNZG7VPMS2HDVXMJRGWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WW62OZEY2GHJL4JCOLJRBSRETXDHMWRKWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W23CUADGMVMQQNFKHPHXVP7RPZJZNN6IWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MQLM7ABVCYJLF6JRPF3M3EBXW63GNC27WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MMBKACMLSRX7JJSKBTR35UOEP2WFR6QPWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M4VCDOJGL6BK3HB4XRD2WETBPYX2ITF6WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/J4E265WKWKYMK2RYYSIXBEGZTDY5IQE6WEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4TOGTZ2ZWDH662ZNFFSZVL3M5AJXV6JFWEB
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/356JOYTWW4BWSZ42SEFLV7NYHL3S3AEHWEB
- https://lists.debian.org/debian-lts-announce/2020/12/msg00003.htmlWEB
- https://github.com/pypa/advisory-database/tree/main/vulns/brotli/PYSEC-2020-29.yamlWEB
- https://github.com/google/brotli/releases/tag/v1.0.9WEB
- https://github.com/google/brotli/releases/tag/v1.0.8WEB
- https://github.com/bitemyapp/brotli2-rsPACKAGE
- https://lists.opensuse.org/opensuse-security-announce/2020-09/msg00108.htmlWEB
Frequently Asked Questions
- What is CVE-2020-8927?
- Integer overflow in the bundled Brotli C library This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.5/10).
- How do I check if my project is affected by CVE-2020-8927?
- CVE-2020-8927 affects Microsoft.NETCore.App.Runtime.AOT.win-x64.Cross.android-arm64.Msi.x64, Microsoft.NETCore.App.Runtime.AOT.osx-x64.Cross.android-arm and Microsoft.NETCore.App.Runtime.Mono.android-x86.Msi.x86 (and 113 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2020-8927 and 200,000+ other known vulnerabilities.
Severity & Exploitability
Exploitation requires specific conditions or has limited impact. Remediate within weeks.
Also Known As
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