CVEvulnerability
CVE-2021-33560
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-08
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-203, CWE-325
Description
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. This, for example, affects use of ElGamal in OpenPGP.
Affected configurations
• gnupg libgcrypt (< 1.8.8)
• gnupg libgcrypt (>= 1.9.0 < 1.9.3)
• debian debian linux 9.0
• fedoraproject fedora 33
• fedoraproject fedora 34
• oracle communications cloud native core binding support function 1.11.0
• oracle communications cloud native core network function cloud native environment 1.9.0
• oracle communications cloud native core network function cloud native environment 1.10.0
• oracle communications cloud native core network repository function 1.14.0
• oracle communications cloud native core network repository function 1.15.0
• oracle communications cloud native core network repository function 1.15.1
• oracle communications cloud native core network slice selection function 1.8.0
• oracle communications cloud native core service communication proxy 1.15.0
Related
References
- https://dev.gnupg.org/T5305 Release Notes, Vendor Advisory
- https://dev.gnupg.org/T5328 Vendor Advisory
- https://dev.gnupg.org/T5466 Release Notes, Vendor Advisory
- https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61 Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202210-13 Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Third Party Advisory
- https://dev.gnupg.org/T5305 Release Notes, Vendor Advisory
- https://dev.gnupg.org/T5328 Vendor Advisory
- https://dev.gnupg.org/T5466 Release Notes, Vendor Advisory
- https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61 Patch, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202210-13 Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpujul2022.html Patch, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuoct2021.html Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com