Buffer Overflow in galois_2p8

published 2022-02-14 4 y ago modified 2026-06-17 4 mo ago also GHSA-9p8q-j6q5-mjw8 , EUVD-2022-0943

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.1%; EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits: 0; none known

In galois_2p8 before 0.1.2, PrimitivePolynomialField::new has an off-by-one buffer overflow for a vector.

Patch / fix

fixed in 2

crates.io galois_2p8 0.1.2
galois_2p8_project galois_2p8 0.1.2

Exploit prediction

1.07% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
crates.io	galois_2p8	<0.1.2	0.1.2

Classification

Weakness

CWE-193 Off-by-one Error
CWE-120 Buffer Copy without Checking Size of Input

References

github.com /djsweet/galois_2p8/blob/master/CHANGELOG.md
web, release-notes, third-party-advisory
nvd.nist.gov /vuln/detail/CVE-2022-24988
advisory
github.com /djsweet/galois_2p8
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary