Ciphertext Side Channels on AMD SEV

Bulletin ID: AMD-SB-1033 Potential Impact: Data leakage Severity: Medium Summary AMD received notification of a potential security vulnerability where data in specific cryptographic algorithms can be inferred in a SEV guest by monitoring the ciphertext values over time. Researchers from the...

AMD Client Vulnerabilities – May 2022

Bulletin ID: AMD-SB-1027 Potential Impact: Varies by CVE, see descriptions below Severity: Varies by CVE, see descriptions below Summary During security reviews in collaboration with Google, Microsoft, and Oracle, potential vulnerabilities in the AMD Secure Processor ASP, AMD System Management Un...

AMD EPYC UApp/ABL 输入验证错误漏洞

AMD EPYC is an x86 server microprocessor product line from AMD, known as "Xiao Long" in Chinese, utilizing the Zen microarchitecture. A security vulnerability exists in AMD EPYC UApp/ABL, which stems from improper validation of the target address in SVCLOADFWIMAGEBYINSTANCE and...

AMD EPYC 安全漏洞

AMD EPYC is an x86 server microprocessor product line from AMD, known as "Xiao Long" in Chinese, which utilizes the Zen microarchitecture. A security vulnerability exists in AMD EPYC UApp/ABL. The vulnerability can be exploited by an attacker to corrupt arbitrary memory by bootloading a program,...

Release of Technical Report into the AMD Security Processor

Posted by James Forshaw, Google Project Zero Today, members of Project Zero and the Google Cloud security team are releasing a technical report on a security review of AMD Secure Processor ASP. The ASP is an isolated ARM processor in AMD EPYC CPUs that adds a root of trust and controls secure...

AMD Server Vulnerabilities - May 2022

Bulletin ID: AMD-SB-1028 Potential Impact: Varies by CVE, see descriptions below Severity: Varies by CVE, see descriptions below Summary During security reviews in collaboration with Google, Microsoft, and Oracle, potential vulnerabilities in the AMD Secure Processor ASP, AMD System Management Un...

AMD CPUs May Transiently Execute Beyond Unconditional Direct Branch

Bulletin ID: AMD-SB-1026 Potential Impact: Data leakage Severity: Medium Summary AMD is providing an update for one recommended mitigation, mitigation G-5, in the “Software Techniques for Managing Speculation on AMD processors” white paper. Mitigation G-5 helps address potential vulnerabilities...

LFENCE/JMP Mitigation Update for CVE-2017-5715

Bulletin ID: AMD-SB-1036 Potential Impact: Loss of Confidentiality Severity: Medium Summary AMD is providing an update for one recommended mitigation for CVE-2017-5715 previously known as Spectre Variant 2. The speculative execution window of AMD LFENCE/JMP mitigation MITIGATION V2-2 may be large...

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

Information disclosure

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

CVE-2020-12966

CVE-2020-12966 corresponds to an information-disclosure vulnerability in AMD EPYC processors’ SEV-ES and SEV-SNP. A local authenticated attacker could leak guest data via the malicious hypervisor. Affected products include AMD EPYC generations with SEV/SEV-ES, with SEV-SNP enabling a mitigation p...

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secure Nested Paging SEV-SNP. A local authenticated attacker could potentially exploit this vulnerability leading to...

PT-2022-8415 · Amd · Amd Epyc Processors

Name of the Vulnerable Software and Affected Versions: AMD EPYC Processors affected versions not specified Description: The issue is related to an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State SEV-ES and Secure Encrypted Virtualization with Secur...

Heap-based Buffer Overflow in gpac/gpac

Description Heap-based Buffer Overflow in gpac Proof of Concept Version: MP4Box - GPAC version 1.1.0-DEV-rev1659-g7d3281e88-master c 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io Please cite our work in your research: GPAC Filters: https://doi.org/10.1145/3339825.3394929...

None in gpac/gpac

Description Use After Free in gpac Proof of Concept Version: MP4Box - GPAC version 1.1.0-DEV-rev1647-gb6f68145e-master c 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io Please cite our work in your research: GPAC Filters: https://doi.org/10.1145/3339825.3394929 GPAC:...

Classic Buffer Overflow in gpac/gpac

Description Buffer Overflow in gpac Proof of Concept Version: MP4Box - GPAC version 1.1.0-DEV-rev1647-gb6f68145e-master c 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io Please cite our work in your research: GPAC Filters: https://doi.org/10.1145/3339825.3394929 GPAC:...

Heap-based Buffer Overflow in gpac/gpac

Description Heap-based Buffer Overflow in gpac Proof of Concept Version: MP4Box - GPAC version 1.1.0-DEV-rev1646-gddd7990bb-master c 2000-2022 Telecom Paris distributed under LGPL v2.1+ - http://gpac.io Please cite our work in your research: GPAC Filters: https://doi.org/10.1145/3339825.3394929...

in mruby/mruby

Description A NULL Pointer Dereference was discovered in mrbclass. The vulnerability causes a segmentation fault and application crash. version 6de0fcb ./mruby -v mruby 3.0.0 2021-03-05 System information Ubuntu 20.04 focal, AMD EPYC 7742 64-Core @ 16x 2.25GHz Proof of Concept poc base64 poc...

PT-2021-17004 · Amd · 1St Gen Amd Epyc™ +49

Name of the Vulnerable Software and Affected Versions: No specific software or versions are mentioned. Description: The issue concerns a potential "two time pad attack" due to the persistent platform private key not being protected with a random IV. This could lead to security risks, but specific...