github - ghsa-rj8q-prqp-jwfg

ghsa-rj8q-prqp-jwfg

Vulnerability from github

Published

2024-01-09 18:30

Modified

2024-05-03 15:30

Severity ?

6.5 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Details

Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications running on PowerPC CPU based platforms if the CPU provides vector instructions.

Impact summary: If 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 for PowerPC CPUs restores the contents of vector registers in a different order than they are saved. Thus the contents of some of these vector registers are corrupted when returning to the caller. The vulnerable code is used only on newer PowerPC processors supporting the PowerISA 2.07 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 unless the compiler uses the vector registers for storing pointers, 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. If this cipher is enabled on the server a malicious client can influence whether this AEAD cipher is used. This implies that TLS 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.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2023-6129"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-440",
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-09T17:15:12Z",
    "severity": "MODERATE"
  },
  "details": "Issue summary: The POLY1305 MAC (message authentication code) implementation\ncontains a bug that might corrupt the internal state of applications running\non PowerPC CPU based platforms if the CPU provides vector instructions.\n\nImpact summary: If an attacker can influence whether the POLY1305 MAC\nalgorithm is used, the application state might be corrupted with various\napplication dependent consequences.\n\nThe POLY1305 MAC (message authentication code) implementation in OpenSSL for\nPowerPC CPUs restores the contents of vector registers in a different order\nthan they are saved. Thus the contents of some of these vector registers\nare corrupted when returning to the caller. The vulnerable code is used only\non newer PowerPC processors supporting the PowerISA 2.07 instructions.\n\nThe consequences of this kind of internal application state corruption can\nbe various - from no consequences, if the calling application does not\ndepend on the contents of non-volatile XMM registers at all, to the worst\nconsequences, where the attacker could get complete control of the application\nprocess. However unless the compiler uses the vector registers for storing\npointers, the most likely consequence, if any, would be an incorrect result\nof some application dependent calculations or a crash leading to a denial of\nservice.\n\nThe POLY1305 MAC algorithm is most frequently used as part of the\nCHACHA20-POLY1305 AEAD (authenticated encryption with associated data)\nalgorithm. The most common usage of this AEAD cipher is with TLS protocol\nversions 1.2 and 1.3. If this cipher is enabled on the server a malicious\nclient can influence whether this AEAD cipher is used. This implies that\nTLS server applications using OpenSSL can be potentially impacted. However\nwe are currently not aware of any concrete application that would be affected\nby this issue therefore we consider this a Low severity security issue.",
  "id": "GHSA-rj8q-prqp-jwfg",
  "modified": "2024-05-03T15:30:35Z",
  "published": "2024-01-09T18:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6129"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/050d26383d4e264966fb83428e72d5d48f402d35"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/5b139f95c9a47a55a0c54100f3837b1eee942b04"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openssl/openssl/commit/f3fc5808fe9ff74042d639839610d03b8fdcc015"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240216-0009"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240426-0008"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240426-0013"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240503-0011"
    },
    {
      "type": "WEB",
      "url": "https://www.openssl.org/news/secadv/20240109.txt"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/01/09/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/03/11/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2023-6129

Vulnerability from cvelistv5

Published

2024-01-09 16:36

Modified

2024-10-14 14:55

Severity ?

Summary

POLY1305 MAC implementation corrupts vector registers on PowerPC

References

▼	URL	Tags
	https://www.openssl.org/news/secadv/20240109.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/5b139f95c9a47a55a0c54100f3837b1eee942b04	patch
	https://github.com/openssl/openssl/commit/f3fc5808fe9ff74042d639839610d03b8fdcc015	patch
	https://github.com/openssl/openssl/commit/050d26383d4e264966fb83428e72d5d48f402d35	patch

Impacted products

▼	Vendor	Product
	OpenSSL	OpenSSL

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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