CVE catalog
CVE-2017-9526
libgcrypt20: CVE-2017-9526
- Severity
- Medium · CVSS 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.34% · Oct 25, 2026
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libgcrypt20 | sid | 1.12.4-2 | fixed |
| Debian | libgcrypt20 | forky | 1.12.4-2 | fixed |
| Debian | libgcrypt20 | trixie | 1.11.0-7+deb13u1 | fixed |
| Debian | libgcrypt20 | trixie-security | 1.11.0-7+deb13u1 | fixed |
| Debian | libgcrypt20 | bookworm | 1.10.1-3+deb12u1 | fixed |
| Debian | libgcrypt20 | bookworm-security | 1.10.1-3+deb12u1 | fixed |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.3-2ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.4-3 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.4-4 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.4-5 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.5-2 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.5-2ubuntu0.2 | vulnerable |
| Ubuntu | libgcrypt20 | 16.04 | 1.6.5-2ubuntu0.3 | fixed |
| Suse | libgcrypt | linux enterprise desktop 12 sp2 | 1.6.1-16.39.1 | fixed |
| Suse | libgcrypt | linux enterprise server for raspberry pi 12 sp2 | 1.6.1-16.39.1 | fixed |
| Suse | libgcrypt | linux enterprise software development kit 12 sp2 | 1.6.1-16.39.1 | fixed |
| Suse | libgcrypt | linux enterprise server 12 sp2 | 1.6.1-16.39.1 | fixed |
| Suse | libgcrypt | linux enterprise server for sap applications 12 sp2 | 1.6.1-16.39.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libgcrypt20 | source | sid | 1.7.6-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | forky | 1.7.6-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | trixie | 1.7.6-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | bookworm | 1.7.6-2 | not yet assigned | Not reported | Not reported |
| Ubuntu | libgcrypt20 | deb | 16.04 | 1.6.5-2ubuntu0.3 | Not reported | UBUNTU-CVE-2017-9526 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise desktop 12 sp2 | 1.6.1-16.39.1 | Not reported | SUSE-SU-2017:1608-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server for raspberry pi 12 sp2 | 1.6.1-16.39.1 | Not reported | SUSE-SU-2017:1608-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise software development kit 12 sp2 | 1.6.1-16.39.1 | Not reported | SUSE-SU-2017:1608-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server 12 sp2 | 1.6.1-16.39.1 | Not reported | SUSE-SU-2017:1608-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server for sap applications 12 sp2 | 1.6.1-16.39.1 | Not reported | SUSE-SU-2017:1608-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libgcrypt20]Unknown
Details (4)
1.10.1-3+deb12u1· amd64 · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
- [libgcrypt20-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· amd64 · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
- [libgcrypt20-doc]Unknown
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
- [libgcrypt-mingw-w64-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
[Debian 13 (Trixie)]
- [libgcrypt20]Unknown
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
- [libgcrypt20-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
- [libgcrypt20-doc]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
- [libgcrypt-bin]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
- [libgcrypt-mingw-w64-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.7.6-2dsa · libgcrypt20 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2017_1608-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2017-9526]
- [https://osv.dev/vulnerability/DSA-3880-1]
- [https://osv.dev/vulnerability/SUSE-SU-2017:1608-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2017-9526]
- [https://security-tracker.debian.org/tracker/CVE-2017-9526]
- [https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-9526.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]