Bug 1198145 (CVE-2014-3591)
| Summary: | CVE-2014-3591 libgcrypt: use ciphertext blinding for Elgamal decryption (new side-channel attack) | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Vasyl Kaigorodov <vkaigoro> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | acathrow, bcl, bmcclain, cfergeau, erik-fedora, idith, lsurette, michal.skrivanek, rdieter, rh-spice-bugs, rjones, srevivo, s-yama, ykaul |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | libgcrypt 1.6.3, GnuPG 1.4.19 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2021-10-20 10:50:32 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: | 1198152, 1198153, 1198154, 1198156 | ||
| Bug Blocks: | 1198150 | ||
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Description
Vasyl Kaigorodov
2015-03-03 13:15:30 UTC
As per the upstream, to update a GnuPG 2.0 or 2.1 version you need to update the shared library Libgcrypt to version 1.6.3. Adjusting whiteboard. Created gnupg tracking bugs for this issue: Affects: fedora-all [bug 1198154] Created libgcrypt tracking bugs for this issue: Affects: fedora-all [bug 1198152] Created mingw-libgcrypt tracking bugs for this issue: Affects: fedora-all [bug 1198153] Created mingw-libgcrypt tracking bugs for this issue: Affects: epel-all [bug 1198156] gnupg-1.4.19-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. libgcrypt-1.6.3-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. gnupg-1.4.19-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. gnupg-1.4.19-2.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. libgcrypt-1.6.3-1.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. Statement: Red Hat Product Security has rated this issue as having low security impact, a future update may address this flaw in the libgcrypt and gnupg2 packages. Mitigation: In order to successfully exploit this flaw the attacker needs to following conditions: 1. They need to be very close to the system, in order to record the fluctuations in the electromagnetic waves being emitted by the system. 2. The attacker needs to send specially-crafted cipher text to the system for decryption. 3. The attacker needs to record the electromagnetic fluctuations when these cipher texts are being decrypted. The above conditions can be true only when a laptop is being used for decryption in an unsafe external environment. Typical server setups may not be vulnerable. |