CVE-2018-20177
rdesktop: Memory corruption in rdp_in_unistr
Severity by source
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (medium), Ubuntu (medium).
Description
rdesktop versions up to and including v1.8.3 contain an Integer Overflow that leads to a Heap-Based Buffer Overflow in the function rdp_in_unistr() and results in memory corruption and possibly even a remote code execution.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.10 | rdesktop | 1.8.6-r0 |
| alpine 3.11 | rdesktop | 1.8.6-r0 |
| alpine 3.12 | rdesktop | 1.8.6-r0 |
| alpine 3.13 | rdesktop | 1.8.6-r0 |
| alpine 3.14 | rdesktop | 1.8.6-r0 |
| alpine 3.15 | rdesktop | 1.8.6-r0 |
| alpine 3.16 | rdesktop | 1.8.6-r0 |
| alpine 3.17 | rdesktop | 1.8.6-r0 |
| alpine 3.18 | rdesktop | 1.8.6-r0 |
| alpine 3.19 | rdesktop | 1.8.6-r0 |
| alpine 3.20 | rdesktop | 1.8.6-r0 |
| alpine 3.21 | rdesktop | 1.8.6-r0 |
Show all 25 entries from 25 sources
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.10 | rdesktop | 1.8.6-r0 |
| alpine 3.11 | rdesktop | 1.8.6-r0 |
| alpine 3.12 | rdesktop | 1.8.6-r0 |
| alpine 3.13 | rdesktop | 1.8.6-r0 |
| alpine 3.14 | rdesktop | 1.8.6-r0 |
| alpine 3.15 | rdesktop | 1.8.6-r0 |
| alpine 3.16 | rdesktop | 1.8.6-r0 |
| alpine 3.17 | rdesktop | 1.8.6-r0 |
| alpine 3.18 | rdesktop | 1.8.6-r0 |
| alpine 3.19 | rdesktop | 1.8.6-r0 |
| alpine 3.20 | rdesktop | 1.8.6-r0 |
| alpine 3.21 | rdesktop | 1.8.6-r0 |
| alpine 3.22 | rdesktop | 1.8.6-r0 |
| alpine 3.23 | rdesktop | 1.8.6-r0 |
| alpine 3.24 | rdesktop | 1.8.6-r0 |
| alpine edge | rdesktop | 1.8.6-r0 |
| debian 11 | rdesktop | 1.8.4-1 |
| debian 12 | rdesktop | 1.8.4-1 |
| debian 13 | rdesktop | 1.8.4-1 |
| debian 14 | rdesktop | 1.8.4-1 |
| debian 8 | rdesktop | 1.8.4-0+deb8u1 |
| debian 9 | rdesktop | 1.8.4-1~deb9u1 |
| echo | rdesktop | 1.8.4-1 |
| Red Hat | rdesktop | no fix listed |
| ubuntu 18.04-ESM | rdesktop | no fix listed |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00040.html
- http://www.securityfocus.com/bid/106938
- https://access.redhat.com/security/cve/CVE-2018-20177
- https://github.com/rdesktop/rdesktop/commit/4dca546d04321a610c1835010b5dad85163b65e1
- https://github.com/rdesktop/rdesktop/commit/766ebcf6f23ccfe8323ac10242ae6e127d4505d2%20%28v1.8.4%29
- https://lists.debian.org/debian-lts-announce/2019/02/msg00030.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-20177
- https://research.checkpoint.com/reverse-rdp-attack-code-execution-on-rdp-clients/