ProFTPD before 1.3.6b and 1.3.7rc before 1.3.7rc2 allows remote unauthenticated denial-of-service due to incorrect handling of overly long commands because main.c in a child process enters an infinite loop.
Weakness
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Proftpd | Proftpd | * | 1.3.5 (including) |
| Proftpd | Proftpd | 1.3.6 (including) | 1.3.6 (including) |
| Proftpd | Proftpd | 1.3.6-a (including) | 1.3.6-a (including) |
| Proftpd | Proftpd | 1.3.6-rc1 (including) | 1.3.6-rc1 (including) |
| Proftpd | Proftpd | 1.3.6-rc2 (including) | 1.3.6-rc2 (including) |
| Proftpd | Proftpd | 1.3.6-rc3 (including) | 1.3.6-rc3 (including) |
| Proftpd | Proftpd | 1.3.6-rc4 (including) | 1.3.6-rc4 (including) |
| Proftpd | Proftpd | 1.3.7-rc1 (including) | 1.3.7-rc1 (including) |
| Proftpd-dfsg | Ubuntu | bionic | * |
| Proftpd-dfsg | Ubuntu | disco | * |
| Proftpd-dfsg | Ubuntu | eoan | * |
| Proftpd-dfsg | Ubuntu | focal | * |
| Proftpd-dfsg | Ubuntu | groovy | * |
| Proftpd-dfsg | Ubuntu | hirsute | * |
| Proftpd-dfsg | Ubuntu | impish | * |
| Proftpd-dfsg | Ubuntu | kinetic | * |
| Proftpd-dfsg | Ubuntu | lunar | * |
| Proftpd-dfsg | Ubuntu | mantic | * |
| Proftpd-dfsg | Ubuntu | oracular | * |
| Proftpd-dfsg | Ubuntu | plucky | * |
| Proftpd-dfsg | Ubuntu | trusty | * |
| Proftpd-dfsg | Ubuntu | xenial | * |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-940889.pdf
- https://github.com/proftpd/proftpd/blob/1.3.6/NEWS
- https://github.com/proftpd/proftpd/blob/1.3.6/RELEASE_NOTES
- https://github.com/proftpd/proftpd/blob/master/NEWS
- https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES
- https://github.com/proftpd/proftpd/issues/846
- https://lists.debian.org/debian-lts-announce/2019/10/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJDQRVZTILBX4BUCTIRKP2WBHDHDCJR5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RB2FPAWDWXT5ALAFIC5Y3RSEMXSFL6H2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLRPYEEMQJVAXO2SXRGOQ4HBFEEPCNXG/
- https://seclists.org/bugtraq/2019/Nov/7
- https://security.gentoo.org/glsa/202003-35
- https://www.debian.org/security/2019/dsa-4559
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-940889.pdf
- https://github.com/proftpd/proftpd/blob/1.3.6/NEWS
- https://github.com/proftpd/proftpd/blob/1.3.6/RELEASE_NOTES
- https://github.com/proftpd/proftpd/blob/master/NEWS
- https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES
- https://github.com/proftpd/proftpd/issues/846
- https://lists.debian.org/debian-lts-announce/2019/10/msg00036.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJDQRVZTILBX4BUCTIRKP2WBHDHDCJR5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RB2FPAWDWXT5ALAFIC5Y3RSEMXSFL6H2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YLRPYEEMQJVAXO2SXRGOQ4HBFEEPCNXG/
- https://seclists.org/bugtraq/2019/Nov/7
- https://security.gentoo.org/glsa/202003-35
- https://www.debian.org/security/2019/dsa-4559