kritik
CVE-2018-6789
exim: buffer overflow in b64decode() function, possibly leading to remote code execution
En geç 24 Eki 2026, 07:11 UTC tarihinden beri Trivy database'indeO derlemeden önce ne zaman girdiği kayıtlı değil.
Kaynağa göre önem derecesi
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
Trivy'nin kendi etiketi CRITICAL. Kritik diyenler: NVD, Red Hat, Amazon. Daha düşük diyenler: Ubuntu (orta).
Açıklama
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.
Etkilenen paketler ve düzeltilmiş sürümler
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| amazon linux 1 | exim, exim-debuginfo, exim-greylist ve 3 tane daha | 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 |
33 kaynaktaki 38 kaydın hepsini göster
| Kaynak | Paket | Düzeltildiği sürüm |
|---|---|---|
| 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 |
Referanslar
- 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
19 referansın hepsi
- 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/