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Oracle Linux: CVE-2019-13627: ELSA-2020-4482: libgcrypt security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

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Oracle Linux: CVE-2019-13627: ELSA-2020-4482: libgcrypt security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:N/C:C/I:C/A:N)
Published
10/02/2019
Created
11/14/2020
Added
11/12/2020
Modified
11/29/2024

Description

It was discovered that there was a ECDSA timing attack in the libgcrypt20 cryptographic library. Version affected: 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4. Versions fixed: 1.8.5-2 and 1.6.3-2+deb8u7. A timing attack was found in the way ECCDSA was implemented in libgcrypt. A man-in-the-middle attacker could use this attack during signature generation to recover the private key. This attack is only feasible when the attacker is local to the machine where the signature is being generated. Attacks over the network or via the internet are not feasible.

Solution(s)

  • oracle-linux-upgrade-libgcrypt
  • oracle-linux-upgrade-libgcrypt-devel

References

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