QID 174863

QID 174863: SUSE Enterprise Linux Security update for openssl-1_1 (SUSE-SU-2021:0954-1)

This update for openssl-1_1 fixes the following security issue:

* CVE-2021-3449: An OpenSSL TLS server may crash if sent a maliciously
crafted renegotiation ClientHello message from a client. If a TLSv1.2
renegotiation ClientHello omits the signature_algorithms extension but
includes a signature_algorithms_cert extension, then a NULL pointer
dereference will result, leading to a crash and a denial of service
attack. OpenSSL TLS clients are not impacted by this issue. [bsc#1183852]

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as Medium - 5.9 severity.
  • CVSS V2 rated as Medium - 4.3 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:0954-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 174863

    CVE-2021-3449 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:0954-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-March/008558.html
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