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CVE-2019-13627

22
FAUCET Score

CVE-2019-13627 describes an ECDSA timing attack vulnerability in the libgcrypt20 cryptographic library, affecting versions 1.8.4-5, 1.7.6-2+deb9u3, and 1.6.3-2+deb8u4 across Canonical, Debian, and OpenSUSE products. This vulnerability has a CVSS score of 6.3 (Medium), indicating a local attack vector with high attack complexity, but potentially high confidentiality and integrity impact. While there is no evidence of active exploitation, public exploit code, or Metasploit/Nuclei modules, the vulnerability has garnered minimal community discussion, with one Reddit mention. The EPSS score is very low, suggesting a minimal likelihood of exploitation in the wild.

Impacted Technologies

VendorProductVersion(s)CPE
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
19.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.3MEDIUM

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 50th percentile among its peer group of 167 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: libgcrypt-0:1.8.5-4.el8
View patch

Vendor Advisories (1)

redhatCVE-2019-13627Moderate

libgcrypt: ECDSA timing attack allowing private key leak

Oct 2, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-09/msg00060.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-01/msg00018.html
Third Party Advisory
github.com / gpg/libgcrypt/releases/tag/libgcrypt-1.8.5
Third Party Advisory
lists.debian.org / debian-lts-announce/2019/09/msg00024.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2020/01/msg00001.html
Third Party Advisory
minerva.crocs.fi.muni.cz
Third Party Advisory
security.gentoo.org / glsa/202003-32
Third Party Advisory
security-tracker.debian.org / tracker/CVE-2019-13627
Third Party Advisory
usn.ubuntu.com / 4236-1
Third Party Advisory
usn.ubuntu.com / 4236-2
Third Party Advisory
usn.ubuntu.com / 4236-3
Third Party Advisory
openwall.com / lists/oss-security/2019/10/02/2
Mailing ListThird Party Advisory