CVE-2015-0837
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
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.95% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.0% of scored records. A rank, not a probability.
- NVD base score
- 5.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2019-11-29 21:10Z6 YR AGO
- Last updated
- 2024-08-06 04:26Z2 YR AGO
- Reserved
- 2015-01-07
- Assigning CNA
- debian
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-203Observable DiscrepancyBase
- Data version
- 5.1
- Document digest
- 74ce40560f54f13d526394731d417f5f35333cbcc468943a6dd7ca8d315c0dae
05 Affected products
06 References
- www.debian.orghttp://www.debian.org/security/2015/dsa-3184
- www.debian.orghttp://www.debian.org/security/2015/dsa-3185
- lists.gnupg.orghttps://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000363.html
- lists.gnupg.orghttps://lists.gnupg.org/pipermail/gnupg-announce/2015q1/000364.html
- ieeexplore.ieee.orghttps://ieeexplore.ieee.org/document/7163050
07 Fixed in
Debian 12
- libgcrypt20 Fixed in 1.6.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libgcrypt20 Fixed in 1.6.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libgcrypt20 Fixed in 1.6.3-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- gnupg Fixed in 1.4.16-1ubuntu2.3
- libgcrypt11 Fixed in 1.5.3-2ubuntu4.2
- libgcrypt20 Fixed in 1.6.1-2ubuntu1.14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.