Integer Overflow or Wraparound Affecting openssl package, versions <1.1.1j-1ubuntu1


Severity

low

    Threat Intelligence

    EPSS
    0.85% (83rd percentile)

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  • Snyk ID SNYK-UBUNTU2110-OPENSSL-1737811
  • published 17 Feb 2021
  • disclosed 16 Feb 2021

How to fix?

Upgrade Ubuntu:21.10 openssl to version 1.1.1j-1ubuntu1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by Ubuntu. See How to fix? for Ubuntu:21.10 relevant fixed versions and status.

Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.0.2x and below are affected by this issue. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. Other users should upgrade to 1.1.1j. Fixed in OpenSSL 1.1.1j (Affected 1.1.1-1.1.1i). Fixed in OpenSSL 1.0.2y (Affected 1.0.2-1.0.2x).

References

CVSS Scores

version 3.1
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Snyk

7.5 low
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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NVD

7.5 high
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SUSE

6.5 medium
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Red Hat

7.5 high