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OpenAdvisories
High USN-7980-1 12 CVEs

openssl vulnerabilities

Published Jan 27, 2026 · Updated Oct 27, 2026

Ecosystem: Ubuntu

Summary

Stanislav Fort, Petr Šimeček, and Hamza discovered that OpenSSL
incorrectly validated PBMAC1 parameters when doing PKCS#12 MAC
verification. An attacker could possibly use this issue to cause OpenSSL to
crash, resulting in a denial of service. This issue only affected Ubuntu
25.10. (CVE-2025-11187)

Stanislav Fort discovered that OpenSSL incorrectly parsed CMS
AuthEnvelopedData messages. An attacker could possibly use this issue to
cause OpenSSL to crash, resulting in a denial of service. (CVE-2025-15467)

Stanislav Fort discovered that OpenSSL incorrectly handled memory in the
SSL_CIPHER_find() function. An attacker could possibly use this issue to
cause OpenSSL to crash, resulting in a denial of service. This issue only
affected Ubuntu 25.10. (CVE-2025-15468)

Stanislav Fort discovered that the OpenSSL "openssl dgst" command line
tool incorrectly truncated data to 16MB. An attacker could posibly use this
issue to hide unauthenticated data beyond the 16MB limit. This issue only
affected Ubuntu 25.10. (CVE-2025-15469)

Tomas Dulka and Stanislav Fort discovered that OpenSSL incorrectly handled
memory with TLS 1.3 connections using certificate compression. An attacker
could possibly use this issue to consume resources, leading to a denial of
service. This issue only affected Ubuntu 25.10. (CVE-2025-66199)

Petr Simecek and Stanislav Fort discovered that OpenSSL incorrectly handled
memory when writing large data into a BIO chain. An attacker could possibly
use this issue to consume resources, leading to a denial of service.
(CVE-2025-68160)

Stanislav Fort discovered that the OpenSSL OCB API could incorrectly leave
final partial blocks unencrypted and unauthenticated. An attacker could
possibly use this issue to read or tamper with the affected final bytes.
(CVE-2025-69418)

Stanislav Fort discovered that OpenSSL incorrectly handled the
PKCS12_get_friendlyname() utf-8 conversion. An attacker could possibly use
this issue to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2025-69419)

Luigino Camastra discovered that OpenSSL incorrectly handled ASN1_TYPE
validation in the TS_RESP_verify_response() function. An attacker could
possibly use this issue to cause OpenSSL to crash, resulting in a denial of
service. (CVE-2025-69420)

Luigino Camastra discovered that OpenSSL incorrectly handled memory in the
PKCS12_item_decrypt_d2i_ex function. An attacker could possibly use this
issue to cause OpenSSL to crash, resulting in a denial of service.
(CVE-2025-69421)

Luigino Camastra discovered that OpenSSL incorrectly handled ASN1_TYPE
validation in PKCS#12 parsing. An attacker could possibly use this issue to
cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-22795)

Luigino Camastra discovered that OpenSSL incorrectly handled ASN1_TYPE
validation in the PKCS7_digest_from_attributes() function. An attacker
could possibly use this issue to cause OpenSSL to crash, resulting in a
denial of service. (CVE-2026-22796)

Fixed packages 3

ReleasePackageFixed in
Ubuntu · 22.04 LTS 22.04:LTS openssl 3.0.2-0ubuntu1.21
Ubuntu · 24.04 LTS 24.04:LTS openssl 3.0.13-0ubuntu3.7
Ubuntu · 25.10 openssl 3.5.3-1ubuntu3

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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • 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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • 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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • 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-…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • 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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Alpine Wolfi
  • Medium 5.9
    CVE-2025-15468

    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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 5.9
    CVE-2025-66199

    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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 5.5
    CVE-2025-15469

    '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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Alpine Wolfi
  • Medium 5.5
    CVE-2026-22795

    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, …

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 5.3
    CVE-2026-22796

    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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 4.7
    CVE-2025-68160

    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 …

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi
  • Medium 4.0
    CVE-2025-69418

    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…

    OpenSSL OpenSSL openssl nodejs Debian Ubuntu Azure Linux Alpine Wolfi

References

  • report
    https://ubuntu.com/security/CVE-2025-11187
  • report
    https://ubuntu.com/security/CVE-2025-15467
  • report
    https://ubuntu.com/security/CVE-2025-15468
  • report
    https://ubuntu.com/security/CVE-2025-15469
  • report
    https://ubuntu.com/security/CVE-2025-66199
  • report
    https://ubuntu.com/security/CVE-2025-68160
  • report
    https://ubuntu.com/security/CVE-2025-69418
  • report
    https://ubuntu.com/security/CVE-2025-69419
  • report
    https://ubuntu.com/security/CVE-2025-69420
  • report
    https://ubuntu.com/security/CVE-2025-69421
  • report
    https://ubuntu.com/security/CVE-2026-22795
  • report
    https://ubuntu.com/security/CVE-2026-22796