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OpenAdvisories
High RLSA-2026:1472 12 CVEs

Important: openssl security update

Published Jan 30, 2026 · Updated Jan 30, 2026

Summary

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 or denial of service through crafted PKCS#12 file (CVE-2025-11187)

* openssl: OpenSSL: Remote code execution or Denial of Service via oversized Initialization Vector in CMS parsing (CVE-2025-15467)

* openssl: OpenSSL: Denial of Service via NULL pointer dereference in QUIC protocol handling (CVE-2025-15468)

* openssl: OpenSSL: Data integrity bypass in `openssl dgst` command due to silent truncation (CVE-2025-15469)

* openssl: OpenSSL: Denial of Service due to excessive memory allocation in TLS 1.3 certificate compression (CVE-2025-66199)

* openssl: OpenSSL: Denial of Service due to out-of-bounds write in BIO filter (CVE-2025-68160)

* openssl: OpenSSL: Information disclosure and data tampering via specific low-level OCB encryption/decryption calls (CVE-2025-69418)

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

* openssl: OpenSSL: Denial of Service via malformed PKCS#12 file processing (CVE-2025-69421)

* openssl: OpenSSL: Denial of Service via malformed TimeStamp Response (CVE-2025-69420)

* openssl: OpenSSL: Denial of Service due to type confusion in PKCS#12 file processing (CVE-2026-22795)

* openssl: OpenSSL: Denial of Service via type confusion in PKCS#7 signature verification (CVE-2026-22796)

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.

Fixed packages 1

ReleasePackageFixed in
Rocky Linux · 10 openssl 1:3.5.1-7.el10_1

Vulnerabilities 12

  • High 8.8
    CVE-2025-15467 Public exploit EPSS 75%

    Stack buffer overflow in CMS (Auth)EnvelopedData parsing

    Issue summary: Parsing CMS AuthEnvelopedData or EnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote c…

  • High 7.5
    CVE-2025-69420 Public exploit

    Missing ASN1_TYPE validation in TS_RESP_verify_response() function

    Issue summary: A type confusion vulnerability exists in the TimeStamp Response verification code where an ASN1_TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing a malformed TimeStam…

  • High 7.5
    CVE-2025-69421 Public exploit

    NULL Pointer Dereference in PKCS12_item_decrypt_d2i_ex function

    Issue summary: Processing a malformed PKCS#12 file can trigger a NULL pointer dereference in the PKCS12_item_decrypt_d2i_ex() function. Impact summary: A NULL pointer dereference can trigger a crash which leads to Denial of Service for an application processi…

  • High 7.4
    CVE-2025-69419 Public exploit

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

    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-…

  • Medium 6.1
    CVE-2025-11187 Public exploit

    Improper validation of PBMAC1 parameters in PKCS#12 MAC verification

    Issue summary: PBMAC1 parameters in PKCS#12 files are missing validation which can trigger a stack-based buffer overflow, invalid pointer or NULL pointer dereference during MAC verification. Impact summary: The stack buffer overflow or NULL pointer dereferenc…

  • Medium 5.9

    NULL dereference in SSL_CIPHER_find() function on unknown cipher ID

    Issue summary: If an application using the SSL_CIPHER_find() function in a QUIC protocol client or server receives an unknown cipher suite from the peer, a NULL dereference occurs. Impact summary: A NULL pointer dereference leads to abnormal termination of th…

  • Medium 5.9

    TLS 1.3 CompressedCertificate excessive memory allocation

    Issue summary: A TLS 1.3 connection using certificate compression can be forced to allocate a large buffer before decompression without checking against the configured certificate size limit. Impact summary: An attacker can cause per-connection memory allocat…

  • Medium 5.5

    'openssl dgst' one-shot codepath silently truncates inputs >16MB

    Issue summary: The 'openssl dgst' command-line tool silently truncates input data to 16MB when using one-shot signing algorithms and reports success instead of an error. Impact summary: A user signing or verifying files larger than 16MB with one-shot algorith…

  • Medium 5.5

    Missing ASN1_TYPE validation in PKCS#12 parsing

    Issue summary: An invalid or NULL pointer dereference can happen in an application processing a malformed PKCS#12 file. Impact summary: An application processing a malformed PKCS#12 file can be caused to dereference an invalid or NULL pointer on memory read, …

  • Medium 5.3

    ASN1_TYPE Type Confusion in the PKCS7_digest_from_attributes() function

    Issue summary: A type confusion vulnerability exists in the signature verification of signed PKCS#7 data where an ASN1_TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing malformed PK…

  • Medium 4.7

    Heap out-of-bounds write in BIO_f_linebuffer on short writes

    Issue summary: Writing large, newline-free data into a BIO chain using the line-buffering filter where the next BIO performs short writes can trigger a heap-based out-of-bounds write. Impact summary: This out-of-bounds write can cause memory corruption which …

  • Medium 4.0

    Unauthenticated/unencrypted trailing bytes with low-level OCB function calls

    Issue summary: When using the low-level OCB API directly with AES-NI or<br>other hardware-accelerated code paths, inputs whose length is not a multiple<br>of 16 bytes can leave the final partial block unencrypted and unauthenticated.<br><br>Impact summary: Th…

References

  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430376
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430387
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430378
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430380
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430390
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430388
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430379
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430386
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430389
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430377
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430381
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2430375