An update for libgcrypt is now available for openEuler-20.03-LTS-SP1
Security Advisory
openeuler-security@openeuler.org
openEuler security committee
openEuler-SA-2021-1243
Final
1.0
1.0
2021-06-26
Initial
2021-06-26
2021-06-26
openEuler SA Tool V1.0
2021-06-26
libgcrypt security update
An update for libgcrypt is now available for openEuler-20.03-LTS-SP1.
Libgcrypt is a general purpose cryptographic library originally based on code from GnuPG.
Security Fix(es):
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.(CVE-2021-33560)
An update for libgcrypt is now available for openEuler-20.03-LTS-SP1.
openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.
High
libgcrypt
https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1243
https://openeuler.org/en/security/cve/detail.html?id=CVE-2021-33560
https://nvd.nist.gov/vuln/detail/CVE-2021-33560
openEuler-20.03-LTS-SP1
libgcrypt-devel-1.8.6-3.oe1.aarch64.rpm
libgcrypt-1.8.6-3.oe1.aarch64.rpm
libgcrypt-debuginfo-1.8.6-3.oe1.aarch64.rpm
libgcrypt-debugsource-1.8.6-3.oe1.aarch64.rpm
libgcrypt-help-1.8.6-3.oe1.noarch.rpm
libgcrypt-1.8.6-3.oe1.src.rpm
libgcrypt-debuginfo-1.8.6-3.oe1.x86_64.rpm
libgcrypt-debugsource-1.8.6-3.oe1.x86_64.rpm
libgcrypt-1.8.6-3.oe1.x86_64.rpm
libgcrypt-devel-1.8.6-3.oe1.x86_64.rpm
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.
2021-06-26
CVE-2021-33560
openEuler-20.03-LTS-SP1
High
7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
libgcrypt security update
2021-06-26
https://openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2021-1243