critique
CVE-2018-6789
exim: buffer overflow in b64decode() function, possibly leading to remote code execution
Dans la Trivy database depuis au moins le 24 oct. 2026, 07:11 UTCLa date d'entrée avant ce build n'est pas enregistrée.
Sévérité par source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Le label propre à Trivy est CRITICAL. Critique selon NVD, Red Hat, Amazon. Plus basse selon Ubuntu (moyenne).
Description
An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
Paquets affectés et versions corrigées
| Source | Paquet | Corrigé en |
|---|---|---|
| amazon linux 1 | exim, exim-debuginfo, exim-greylist et 3 autres | 4.90.1-2.14.amzn1 |
| alpine 3.10 | exim | 4.90.1-r0 |
| alpine 3.11 | exim | 4.90.1-r0 |
| alpine 3.12 | exim | 4.90.1-r0 |
| alpine 3.13 | exim | 4.90.1-r0 |
| alpine 3.14 | exim | 4.90.1-r0 |
| alpine 3.15 | exim | 4.90.1-r0 |
| alpine 3.16 | exim | 4.90.1-r0 |
| alpine 3.17 | exim | 4.90.1-r0 |
| alpine 3.18 | exim | 4.90.1-r0 |
| alpine 3.19 | exim | 4.90.1-r0 |
| alpine 3.20 | exim | 4.90.1-r0 |
Afficher les 38 entrées de 33 sources
| Source | Paquet | Corrigé en |
|---|---|---|
| amazon linux 1 | exim | 4.90.1-2.14.amzn1 |
| amazon linux 1 | exim-debuginfo | 4.90.1-2.14.amzn1 |
| amazon linux 1 | exim-greylist | 4.90.1-2.14.amzn1 |
| amazon linux 1 | exim-mon | 4.90.1-2.14.amzn1 |
| amazon linux 1 | exim-mysql | 4.90.1-2.14.amzn1 |
| amazon linux 1 | exim-pgsql | 4.90.1-2.14.amzn1 |
| alpine 3.10 | exim | 4.90.1-r0 |
| alpine 3.11 | exim | 4.90.1-r0 |
| alpine 3.12 | exim | 4.90.1-r0 |
| alpine 3.13 | exim | 4.90.1-r0 |
| alpine 3.14 | exim | 4.90.1-r0 |
| alpine 3.15 | exim | 4.90.1-r0 |
| alpine 3.16 | exim | 4.90.1-r0 |
| alpine 3.17 | exim | 4.90.1-r0 |
| alpine 3.18 | exim | 4.90.1-r0 |
| alpine 3.19 | exim | 4.90.1-r0 |
| alpine 3.20 | exim | 4.90.1-r0 |
| alpine 3.21 | exim | 4.90.1-r0 |
| alpine 3.22 | exim | 4.90.1-r0 |
| alpine 3.23 | exim | 4.90.1-r0 |
| alpine 3.24 | exim | 4.90.1-r0 |
| alpine 3.7 | exim | 4.90.1-r0 |
| alpine 3.8 | exim | 4.90.1-r0 |
| alpine 3.9 | exim | 4.90.1-r0 |
| alpine edge | exim | 4.90.1-r0 |
| debian 11 | exim4 | 4.90.1-1 |
| debian 12 | exim4 | 4.90.1-1 |
| debian 13 | exim4 | 4.90.1-1 |
| debian 14 | exim4 | 4.90.1-1 |
| debian 7 | exim4 | 4.80-7+deb7u6 |
| debian 8 | exim4 | 4.84.2-2+deb8u5 |
| debian 9 | exim4 | 4.89-2+deb9u3 |
| echo | exim4 | 4.90.1-1 |
| ubuntu 14.04 | exim4 | 4.82-3ubuntu2.4 |
| ubuntu 14.04-ESM | exim4 | 4.82-3ubuntu2.4 |
| ubuntu 16.04 | exim4 | 4.86.2-2ubuntu2.3 |
| ubuntu 16.04-ESM | exim4 | 4.86.2-2ubuntu2.3 |
| ubuntu 17.10 | exim4 | 4.89-5ubuntu1.3 |
Références
- http://openwall.com/lists/oss-security/2018/02/10/2
- http://packetstormsecurity.com/files/162959/Exim-base64d-Buffer-Overflow.html
- http://www.openwall.com/lists/oss-security/2018/02/07/2
- http://www.securityfocus.com/bid/103049
- http://www.securitytracker.com/id/1040461
- https://access.redhat.com/security/cve/CVE-2018-6789
- https://devco.re/blog/2018/03/06/exim-off-by-one-RCE-exploiting-CVE-2018-6789-en/
- https://exim.org/static/doc/security/CVE-2018-6789.txt
Les 19 références
- https://git.exim.org/exim.git/commit/cf3cd306062a08969c41a1cdd32c6855f1abecf1
- https://lists.debian.org/debian-lts-announce/2018/02/msg00009.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-6789
- https://ubuntu.com/security/notices/USN-3565-1
- https://usn.ubuntu.com/3565-1/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-6789
- https://www.cve.org/CVERecord?id=CVE-2018-6789
- https://www.debian.org/security/2018/dsa-4110
- https://www.exploit-db.com/exploits/44571/
- https://www.exploit-db.com/exploits/45671/