Vulnerability · Published Nov 19, 2021 · Assigned by talos
CVE-2021-40391
Critical 10.0
In plain English
A critical-severity security flaw in Gerbv. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.0% (higher than 87% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)10.0Critical
Exploit odds (30 days)3.0%top 12.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
An out-of-bounds write vulnerability exists in the drill format T-code tool number functionality of Gerbv 2.7.0, dev (commit b5f1eacd), and the forked version of Gerbv (commit 71493260). A specially-crafted drill file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gerbv | 2.7.1-1 | DEBIAN-CVE-2021-40391 |
| Debian:13 | gerbv | 2.7.1-1 | DEBIAN-CVE-2021-40391 |
Affected products (as reported)
Weakness: CWE-390 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1402 x_refsource_MISC
- [debian-lts-announce] 20211203 [SECURITY] [DLA 2839-1] gerbv security update mailing-list, x_refsource_MLIST
- FEDORA-2022-4a3ef86baa vendor-advisory, x_refsource_FEDORA