Bug 1844177 (CVE-2020-11088)
| Summary: | CVE-2020-11088 freerdp: out-of-bounds read in ntlm_read_NegotiateMessage | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Guilherme de Almeida Suckevicz <gsuckevi> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | mads, negativo17, oholy, pahan |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | freerdp 2.1.0 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-09-29 22:01:40 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1844178, 1844179, 1844180, 1844181, 1844593, 1844594 | ||
| Bug Blocks: | 1844196 | ||
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Description
Guilherme de Almeida Suckevicz
2020-06-04 18:21:26 UTC
Created freerdp tracking bugs for this issue: Affects: epel-6 [bug 1844179] Affects: fedora-all [bug 1844180] Created freerdp1.2 tracking bugs for this issue: Affects: epel-7 [bug 1844181] Affects: fedora-all [bug 1844178] Technical Summary: An out-of-bounds read was possible in ntlm_read_NegotiateMessage() of winpr/libwinpr/sspi/NTLM/ntlm_message.c. The component read 4 bytes of data from the stream into a buffer without first checking if there were 4 bytes left in the stream. The patch now uses Stream_GetRemainingLength() to mitigate this. Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2020:4031 https://access.redhat.com/errata/RHSA-2020:4031 This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-11088 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2020:4647 https://access.redhat.com/errata/RHSA-2020:4647 |