Bug 1835403 (CVE-2020-11046)
| Summary: | CVE-2020-11046 freerdp: out of bounds seek in update_read_synchronize function could lead out of bounds read | ||
|---|---|---|---|
| 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 2.0.0 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2020-09-29 22:01:03 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: | 1835404, 1835405, 1835406, 1836402, 1836403 | ||
| Bug Blocks: | 1835410 | ||
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Description
Guilherme de Almeida Suckevicz
2020-05-13 17:57:33 UTC
Created freerdp tracking bugs for this issue: Affects: epel-all [bug 1835406] Affects: fedora-all [bug 1835404] Created freerdp1.2 tracking bugs for this issue: Affects: fedora-all [bug 1835405] Technical Summary: update_read_synchronize() does a fixed seek of +2 bytes in the stream buffer. It does this seek without first checking whether it will overflow past the end of the stream buffer. Due to this, calling update_read_synchronize() at the end of the buffer will seek the stream buffer pointer to a position such that the next read of the stream buffer will be out-of-bounds. 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-2020-11046 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 |