CVE catalog
CVE-2015-0837
libgcrypt20: CVE-2015-0837
- Severity
- Medium · CVSS 5.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.95% · Oct 25, 2026
The mpi_powm function in Libgcrypt before 1.6.3 and GnuPG before 1.4.19 allows attackers to obtain sensitive information by leveraging timing differences when accessing a pre-computed table during modular exponentiation, related to a "Last-Level Cache Side-Channel Attack."
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 | gnupg | 14.04 | 1.4.14-1ubuntu2 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.15-1.1ubuntu1 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.15-1.1ubuntu2 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.15-2ubuntu1 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.16-1ubuntu1 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.16-1ubuntu2 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.16-1ubuntu2.1 | vulnerable |
| Ubuntu | gnupg | 14.04 | 1.4.16-1ubuntu2.3 | fixed |
| Ubuntu | libgcrypt11 | 14.04 | 1.5.0-3ubuntu3 | vulnerable |
| Ubuntu | libgcrypt11 | 14.04 | 1.5.3-2ubuntu1 | vulnerable |
| Ubuntu | libgcrypt11 | 14.04 | 1.5.3-2ubuntu4 | vulnerable |
| Ubuntu | libgcrypt11 | 14.04 | 1.5.3-2ubuntu4.1 | vulnerable |
| Ubuntu | libgcrypt11 | 14.04 | 1.5.3-2ubuntu4.2 | fixed |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.0-2 | vulnerable |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.0-2ubuntu2 | vulnerable |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.1-1 | vulnerable |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.1-2 | vulnerable |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.1-2ubuntu1 | vulnerable |
| Ubuntu | libgcrypt20 | 14.04 | 1.6.1-2ubuntu1.14.04.1 | fixed |
| Suse | libgcrypt | linux enterprise desktop 12 | 1.6.1-16.1 | fixed |
| Suse | libgcrypt | linux enterprise software development kit 12 | 1.6.1-16.1 | fixed |
| Suse | libgcrypt | linux enterprise server 12 | 1.6.1-16.1 | fixed |
| Suse | libgcrypt | linux enterprise server for sap applications 12 | 1.6.1-16.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libgcrypt20 | source | sid | 1.6.3-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | forky | 1.6.3-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | trixie | 1.6.3-2 | not yet assigned | Not reported | Not reported |
| Debian | libgcrypt20 | source | bookworm | 1.6.3-2 | not yet assigned | Not reported | Not reported |
| Ubuntu | gnupg | deb | 14.04 | 1.4.16-1ubuntu2.3 | Not reported | UBUNTU-CVE-2015-0837 | Not reported |
| Ubuntu | libgcrypt11 | deb | 14.04 | 1.5.3-2ubuntu4.2 | Not reported | UBUNTU-CVE-2015-0837 | Not reported |
| Ubuntu | libgcrypt20 | deb | 14.04 | 1.6.1-2ubuntu1.14.04.1 | Not reported | UBUNTU-CVE-2015-0837 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise desktop 12 | 1.6.1-16.1 | Not reported | SUSE-SU-2015:1511-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise software development kit 12 | 1.6.1-16.1 | Not reported | SUSE-SU-2015:1511-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server 12 | 1.6.1-16.1 | Not reported | SUSE-SU-2015:1511-1 | Not reported |
| Suse | libgcrypt | rpm | linux enterprise server for sap applications 12 | 1.6.1-16.1 | Not reported | SUSE-SU-2015:1511-1 | 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:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
- [libgcrypt20-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· amd64 · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· amd64 · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· arm64 · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
- [libgcrypt20-doc]Unknown
Source package: [libgcrypt20]
Details (4)
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.6.3-2dsa · 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:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookwormFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
1.10.1-3+deb12u1· all · bookworm-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · bookworm; dsa · libgcrypt20 · debian · 12
[Debian 13 (Trixie)]
- [libgcrypt20]Unknown
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
- [libgcrypt20-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
- [libgcrypt20-doc]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
- [libgcrypt-bin]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· amd64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· amd64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· arm64 · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
- [libgcrypt-mingw-w64-dev]Unknown
Source package: [libgcrypt20]
Details (4)
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixieFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
1.11.0-7+deb13u1· all · trixie-securityFixed · Fixed:
1.6.3-2dsa · libgcrypt20 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2015_1511-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2015-0837]
- [https://osv.dev/vulnerability/SUSE-SU-2015:1511-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2015-0837]
- [https://security-tracker.debian.org/tracker/CVE-2015-0837]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]