Lynx before 2.8.9dev.16 is vulnerable to a use after free in the HTML parser resulting in memory disclosure, because HTML_put_string() can append a chunk onto itself.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-1000211 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue did not affect the versions of lynx as shipped with Red Hat Enterprise Linux 5 and 6.
This issue affects the versions of lynx as shipped with Red Hat Enterprise Linux 7. Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 5.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | lynx | Will not fix |
| Red Hat Enterprise Linux 6 | lynx | Not affected |
| Red Hat Enterprise Linux 5 | lynx | Not affected |
Vulmon