CVE-2021-33560 @ morris
Status
new
Priority
7.5
Match score
4.0
Risk
Other
Remote
priv:user
CVSS
7.5 HIGH
Reason
cpe: libgcrypt; pkgs: libgcrypt, libgcrypt-devel; version: in-range: libgcrypt-1.5.3-14.el7, libgcrypt-devel-1.5.3-14.el7
Created
2026-10-15T10:20:39Z
Updated
2026-10-20T10:18:47Z
Package interrogation (copy)
Run on the host — click to copy a command. RPM
| Package | Commands |
|---|---|
| libgcrypt-1.5.3-14.el7 | |
| libgcrypt-devel-1.5.3-14.el7 |
Inventory lookup
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Suggestions: libgcrypt · libgcrypt-devel
Related CVE (same fix)
Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.
Host OS / kernel
OS
CloudLinux release 7.9 (Boris Yegorov)
(7.9)
· cloudlinux
Arch
x86_64
kernel_release
uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64kernel_version
uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.
Same CVE on other hosts
Open the ticket for this CVE on another system.
| System | Status | Priority | Updated | |
|---|---|---|---|---|
| mufasa | new | 7.5 | 2026-10-20T10:18:47Z | Open |
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.
Update status
Add note only
References
- https://dev.gnupg.org/T5305
- https://dev.gnupg.org/T5328
- https://dev.gnupg.org/T5466
- https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61
- https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/
- https://security.gentoo.org/glsa/202210-13
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://dev.gnupg.org/T5305
- https://dev.gnupg.org/T5328
- https://dev.gnupg.org/T5466
NVD: CVE-2021-33560