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CVE-2020-35357

19
FAUCET Score

CVE-2020-35357 is a buffer overflow vulnerability affecting versions 2.5 and 2.6 of the GNU Scientific Library (GSL) Statistics Library, specifically impacting Debian Linux distributions. An unauthenticated attacker could exploit this by providing a specially crafted input to the gsl_stats_quantile_from_sorted_data function, leading to application termination (denial of service) or potentially arbitrary code execution. Rated as Medium severity (CVSS 6.5), this vulnerability requires user interaction (UI:R) to trigger. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.5CPE matchmatch criteria
cpe:2.3:a:gnu:gnu_scientific_library:2.5:*:*:*:*:*:*:*
2.6CPE matchmatch criteria
cpe:2.3:a:gnu:gnu_scientific_library:2.6:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.88%
Probability of exploitation in next 30 days
EPSS Percentile
55.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0088 is in the 66th percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 (5)

microsoftpatch availablevia msrc
Product: azl3 gsl 2.8-1 on Azure Linux 3.0Fixed in: 2.8-1
microsoftpatch availablevia msrc
Product: 19206-17084Fixed in: 2.8-1
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: gsl
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: gsl
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: inkscape:flatpak/gsl

Vendor Advisories (2)

redhatCVE-2020-35357Moderate

gsl: Stack buffer overflow in gsl_stats_quantile_from_sorted_data

Aug 22, 2023
microsoft2023-Aug/CVE-2020-35357Moderate

A buffer overflow can occur when calculating the quantile value using the Statistics Library of GSL (GNU Scientific Library), versions 2.5 and 2.6. Processing a maliciously crafted input data for gsl_stats_quantile_from_sorted_data of the library may lead to unexpected application termination or arbitrary code execution.

Aug 8, 2023

References

lists.debian.org / debian-lts-announce/2024/12/msg00006.html
git.savannah.gnu.org / cgit/gsl.git/commit
Mailing ListPatch
lists.debian.org / debian-lts-announce/2023/09/msg00023.html
Mailing ListThird Party Advisory
savannah.gnu.org / bugs
Patch