MEDIUM 6.1 Microsoft
CVE-2017-7526
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
Microsoft Security Update 2018-Jul: libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
Affected Products
- azl3 grub2 2.06-24 on Azure Linux 3.0
- azl3 grub2 2.06-25 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-7526
- https://nvd.nist.gov/vuln/detail/CVE-2017-7526
This medium severity vulnerability with a CVSS score of 6.1 was published on 2018-07-10 via Microsoft. Affected: azl3 grub2 2.06-24 on Azure Linux 3.0, azl3 grub2 2.06-25 on Azure Linux 3.0.
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