NVD - CVE-2023-4807 (original) (raw)

CVE-2023-4807 Detail

Description

Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64 processors supporting the AVX512-IFMA instructions. Impact summary: If in an application that uses the OpenSSL library an attacker can influence whether the POLY1305 MAC algorithm is used, the application state might be corrupted with various application dependent consequences. The POLY1305 MAC (message authentication code) implementation in OpenSSL does not save the contents of non-volatile XMM registers on Windows 64 platform when calculating the MAC of data larger than 64 bytes. Before returning to the caller all the XMM registers are set to zero rather than restoring their previous content. The vulnerable code is used only on newer x86_64 processors supporting the AVX512-IFMA instructions. The consequences of this kind of internal application state corruption can be various - from no consequences, if the calling application does not depend on the contents of non-volatile XMM registers at all, to the worst consequences, where the attacker could get complete control of the application process. However given the contents of the registers are just zeroized so the attacker cannot put arbitrary values inside, the most likely consequence, if any, would be an incorrect result of some application dependent calculations or a crash leading to a denial of service. The POLY1305 MAC algorithm is most frequently used as part of the CHACHA20-POLY1305 AEAD (authenticated encryption with associated data) algorithm. The most common usage of this AEAD cipher is with TLS protocol versions 1.2 and 1.3 and a malicious client can influence whether this AEAD cipher is used by the server. This implies that server applications using OpenSSL can be potentially impacted. However we are currently not aware of any concrete application that would be affected by this issue therefore we consider this a Low severity security issue. As a workaround the AVX512-IFMA instructions support can be disabled at runtime by setting the environment variable OPENSSL_ia32cap: OPENSSL_ia32cap=:~0x200000 The FIPS provider is not affected by this issue.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST CVSS score

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST CVSS score

NIST: NVD

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

ADP: CISA-ADP

Base Score: 7.8 HIGH

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4bfac4471f53c4f74c8d81020beb938f92d84ca5 CVE, OpenSSL Software Foundation Mailing List Patch
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6754de4a121ec7f261b16723180df6592cbb4508 CVE, OpenSSL Software Foundation Mailing List Patch
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a632d534c73eeb3e3db8c7540d811194ef7c79ff CVE, OpenSSL Software Foundation Mailing List Patch
https://security.netapp.com/advisory/ntap-20230921-0001/ CVE
https://www.openssl.org/news/secadv/20230908.txt CVE, OpenSSL Software Foundation Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST
CWE-440 Expected Behavior Violation OpenSSL Software Foundation

Known Affected Software Configurations Switch to CPE 2.2

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Change History

12 change records found show changes

CVE Modified by CISA-ADP 6/17/2026 2:38:37 AM

Action Type Old Value New Value
Added SSVC {"timestamp":"2025-04-23T13:27:06.574022Z","id":"CVE-2023-4807","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}

CVE Modified by OpenSSL Software Foundation 6/17/2026 2:38:37 AM

Action Type Old Value New Value
Added Affected [{"vendor":"OpenSSL","product":"OpenSSL","defaultStatus":"unaffected","versions":[{"version":"3.1.0","lessThan":"3.1.3","versionType":"semver","status":"affected"},{"version":"3.0.0","lessThan":"3.0.11","versionType":"semver","status":"affected"},{"version":"1.1.1","lessThan":"1.1.1w","versionType":"custom","status":"affected"}]}]

CVE Modified by CISA-ADP 4/23/2025 1:16:47 PM

Action Type Old Value New Value
Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVE Modified by CVE 11/21/2024 3:36:00 AM

Action Type Old Value New Value
Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4bfac4471f53c4f74c8d81020beb938f92d84ca5
Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6754de4a121ec7f261b16723180df6592cbb4508
Added Reference https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a632d534c73eeb3e3db8c7540d811194ef7c79ff
Added Reference https://security.netapp.com/advisory/ntap-20230921-0001/
Added Reference https://www.openssl.org/news/secadv/20230908.txt

CVE Modified by OpenSSL Software Foundation 10/14/2024 11:15:12 AM

Action Type Old Value New Value
Added CWE OpenSSL Software Foundation CWE-440
Removed Reference OpenSSL Software Foundation https://security.netapp.com/advisory/ntap-20230921-0001/

CVE Modified by OpenSSL Software Foundation 5/14/2024 10:13:14 AM

Action Type Old Value New Value

CVE Modified by OpenSSL Software Foundation 9/21/2023 1:15:29 PM

Action Type Old Value New Value
Added Reference https://security.netapp.com/advisory/ntap-20230921-0001/ [No Types Assigned]

Initial Analysis by NIST 9/14/2023 12:43:57 PM

Action Type Old Value New Value
Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added CWE NIST NVD-CWE-noinfo
Added CPE Configuration OR *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 1.1.1 up to (excluding) 1.1.1w *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.0.11 *cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* versions from (including) 3.1.0 up to (excluding) 3.1.3
Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4bfac4471f53c4f74c8d81020beb938f92d84ca5 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4bfac4471f53c4f74c8d81020beb938f92d84ca5 Mailing List, Patch
Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6754de4a121ec7f261b16723180df6592cbb4508 No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=6754de4a121ec7f261b16723180df6592cbb4508 Mailing List, Patch
Changed Reference Type https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a632d534c73eeb3e3db8c7540d811194ef7c79ff No Types Assigned https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=a632d534c73eeb3e3db8c7540d811194ef7c79ff Mailing List, Patch
Changed Reference Type https://www.openssl.org/news/secadv/20230908.txt No Types Assigned https://www.openssl.org/news/secadv/20230908.txt Vendor Advisory

CVE Modified by OpenSSL Software Foundation 9/12/2023 4:15:13 AM

Action Type Old Value New Value
Removed Reference http://packetstormsecurity.com/files/174593/OpenSSL-Security-Advisory-20230908.html [No Types Assigned]
Removed Reference http://www.openwall.com/lists/oss-security/2023/09/08/1 [No Types Assigned]
Removed Reference http://www.openwall.com/lists/oss-security/2023/09/08/3 [No Types Assigned]

CVE Modified by OpenSSL Software Foundation 9/11/2023 3:15:44 PM

Action Type Old Value New Value
Added Reference http://packetstormsecurity.com/files/174593/OpenSSL-Security-Advisory-20230908.html [No Types Assigned]

CVE Modified by OpenSSL Software Foundation 9/08/2023 2:15:07 PM

Action Type Old Value New Value
Added Reference http://www.openwall.com/lists/oss-security/2023/09/08/3 [No Types Assigned]

CVE Modified by OpenSSL Software Foundation 9/08/2023 11:15:32 AM

Action Type Old Value New Value
Added Reference http://www.openwall.com/lists/oss-security/2023/09/08/1 [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2023-4807
NVD Published Date:
09/08/2023
NVD Last Modified:
06/17/2026
Source:
OpenSSL Software Foundation