Index out of bounds leading to crash

published 2023-09-05 3 y ago modified 2026-06-17 4 mo ago also GHSA-xgmm-3vvr-6c8j , EUVD-2023-2613

cvss: 5.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 18%
public exploits: 0; none known

ZPLGFA 1.1.1 allows attackers to cause a panic (because of an integer index out of range during a ConvertToGraphicField call) via an image of zero width. NOTE: it is unclear whether there are common use cases in which this panic could have any security consequence

Patch / fix

links 2

github.com/SimonWaldherr/zplgfa@c0d018f commit
github.com/SimonWaldherr/zplgfa#6 pull request

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 2 y ago (2024-07-11)

Exploit prediction

0.26% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/SimonWaldherr/zplgfa/pull/6 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
GitHub	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected packages

ecosystem	package	affected	fixed in
go	simonwaldherr.de/go/zplgfa	<=1.1.1	no fix listed

Classification

Weakness

CWE-129 Improper Validation of Array Index

References

github.com /SimonWaldherr/zplgfa/pull/6
web, exploit, patch, third-party-advisory
github.com /SimonWaldherr/zplgfa/commit/c0d018ffa921cd2460b80f766b7969fbe63678fc
web
nvd.nist.gov /vuln/detail/CVE-2023-36307
advisory
github.com /SimonWaldherr/zplgfa
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