Vulnerability-Lookup

alsa-2026:3042

Vulnerability from osv_almalinux

Published

2026-02-23 00:00

Modified

2026-02-23 09:07

Summary

Moderate: openssl security update

Details

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.

Security Fix(es):

openssl: OpenSSL: Arbitrary code execution due to out-of-bounds write in PKCS#12 processing (CVE-2025-69419)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "openssl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.1.1k-15.el8_6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "openssl-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.1.1k-15.el8_6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "openssl-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.1.1k-15.el8_6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:8",
        "name": "openssl-perl"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.1.1k-15.el8_6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.  \n\nSecurity Fix(es):  \n\n  * openssl: OpenSSL: Arbitrary code execution due to out-of-bounds write in PKCS#12 processing (CVE-2025-69419)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
  "id": "ALSA-2026:3042",
  "modified": "2026-02-23T09:07:14Z",
  "published": "2026-02-23T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:3042"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-69419"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2430386"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/8/ALSA-2026-3042.html"
    }
  ],
  "related": [
    "CVE-2025-69419"
  ],
  "summary": "Moderate: openssl security update"
}

CVE-2025-69419 (GCVE-0-2025-69419)

Vulnerability from cvelistv5 – Published: 2026-01-27 16:01 – Updated: 2026-01-29 15:09

Title

Out of bounds write in PKCS12_get_friendlyname() UTF-8 conversion

Summary

Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously crafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing non-ASCII BMP code point can trigger a one byte write before the allocated buffer. Impact summary: The out-of-bounds write can cause a memory corruption which can have various consequences including a Denial of Service. The OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12 BMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes, the helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16 source byte count as the destination buffer capacity to UTF8_putc(). For BMP code points above U+07FF, UTF-8 requires three bytes, but the forwarded capacity can be just two bytes. UTF8_putc() then returns -1, and this negative value is added to the output length without validation, causing the length to become negative. The subsequent trailing NUL byte is then written at a negative offset, causing write outside of heap allocated buffer. The vulnerability is reachable via the public PKCS12_get_friendlyname() API when parsing attacker-controlled PKCS#12 files. While PKCS12_parse() uses a different code path that avoids this issue, PKCS12_get_friendlyname() directly invokes the vulnerable function. Exploitation requires an attacker to provide a malicious PKCS#12 file to be parsed by the application and the attacker can just trigger a one zero byte write before the allocated buffer. For that reason the issue was assessed as Low severity according to our Security Policy. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the PKCS#12 implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue. OpenSSL 1.0.2 is not affected by this issue.

Severity ?

No CVSS data available.

CWE

CWE-787 - Out-of-bounds Write

Assigner

openssl

References

URL

Tags

	https://openssl-library.org/news/secadv/20260127.txt	vendor-advisory
	https://github.com/openssl/openssl/commit/7e9cac9…	patch
	https://github.com/openssl/openssl/commit/ff62893…	patch
	https://github.com/openssl/openssl/commit/cda12de…	patch
	https://github.com/openssl/openssl/commit/a26a90d…	patch
	https://github.com/openssl/openssl/commit/41be0f2…	patch

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Affected: 3.6.0 , < 3.6.1 (semver) Affected: 3.5.0 , < 3.5.5 (semver) Affected: 3.4.0 , < 3.4.4 (semver) Affected: 3.3.0 , < 3.3.6 (semver) Affected: 3.0.0 , < 3.0.19 (semver) Affected: 1.1.1 , < 1.1.1ze (custom)

Credits

Stanislav Fort (Aisle Research) Norbert Pócs

Show details on NVD website

JSON

To clipboard

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      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 7.4,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
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          },
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                "id": "CVE-2025-69419",
                "options": [
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                  },
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                  },
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                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-01-29T15:09:04.605559Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      }
    ],
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          "vendor": "OpenSSL",
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              "status": "affected",
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              "versionType": "semver"
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        },
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        }
      ],
      "datePublic": "2026-01-27T14:00:00.000Z",
      "descriptions": [
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              "value": "Issue summary: Calling PKCS12_get_friendlyname() function on a maliciously\u003cbr\u003ecrafted PKCS#12 file with a BMPString (UTF-16BE) friendly name containing\u003cbr\u003enon-ASCII BMP code point can trigger a one byte write before the allocated\u003cbr\u003ebuffer.\u003cbr\u003e\u003cbr\u003eImpact summary: The out-of-bounds write can cause a memory corruption\u003cbr\u003ewhich can have various consequences including a Denial of Service.\u003cbr\u003e\u003cbr\u003eThe OPENSSL_uni2utf8() function performs a two-pass conversion of a PKCS#12\u003cbr\u003eBMPString (UTF-16BE) to UTF-8. In the second pass, when emitting UTF-8 bytes,\u003cbr\u003ethe helper function bmp_to_utf8() incorrectly forwards the remaining UTF-16\u003cbr\u003esource byte count as the destination buffer capacity to UTF8_putc(). For BMP\u003cbr\u003ecode points above U+07FF, UTF-8 requires three bytes, but the forwarded\u003cbr\u003ecapacity can be just two bytes. UTF8_putc() then returns -1, and this negative\u003cbr\u003evalue is added to the output length without validation, causing the\u003cbr\u003elength to become negative. The subsequent trailing NUL byte is then written\u003cbr\u003eat a negative offset, causing write outside of heap allocated buffer.\u003cbr\u003e\u003cbr\u003eThe vulnerability is reachable via the public PKCS12_get_friendlyname() API\u003cbr\u003ewhen parsing attacker-controlled PKCS#12 files. While PKCS12_parse() uses a\u003cbr\u003edifferent code path that avoids this issue, PKCS12_get_friendlyname() directly\u003cbr\u003einvokes the vulnerable function. Exploitation requires an attacker to provide\u003cbr\u003ea malicious PKCS#12 file to be parsed by the application and the attacker\u003cbr\u003ecan just trigger a one zero byte write before the allocated buffer.\u003cbr\u003eFor that reason the issue was assessed as Low severity according to our\u003cbr\u003eSecurity Policy.\u003cbr\u003e\u003cbr\u003eThe FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue,\u003cbr\u003eas the PKCS#12 implementation is outside the OpenSSL FIPS module boundary.\u003cbr\u003e\u003cbr\u003eOpenSSL 3.6, 3.5, 3.4, 3.3, 3.0 and 1.1.1 are vulnerable to this issue.\u003cbr\u003e\u003cbr\u003eOpenSSL 1.0.2 is not affected by this issue."
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  "cveMetadata": {
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    "assignerShortName": "openssl",
    "cveId": "CVE-2025-69419",
    "datePublished": "2026-01-27T16:01:24.822Z",
    "dateReserved": "2026-01-06T12:44:09.945Z",
    "dateUpdated": "2026-01-29T15:09:39.154Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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