Vulnerability in Gnupg Libgcrypt
CVE-2019-12904
In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.022 (82.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 82.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.022 · change: +0.001
Affected products
- Gnupg Libgcrypt — versions 1.8.4
- openSUSE Leap — versions 15.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- dev.gnupg.org/T4541 (Third Party Advisory)
- github.com/gpg/libgcrypt/commit/daedbbb5541cd8ecda1459d3b843ea4d92788762 (Patch, Third Party Advisory)
- github.com/gpg/libgcrypt/commit/a4c561aab1014c3630bc88faf6f5246fee16b020 (Patch, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-07/msg00049.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac… (mailing-list)
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2019-12904?
- CVE-2019-12904 is a medium-severity vulnerability in Gnupg Libgcrypt, classified under Exposure of Resource to Wrong Sphere. CVSS score: 5.9/10. Published 2019-06-20.
- How severe is CVE-2019-12904?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-12904 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.