The do_uncompress function in g10/compress.c in GnuPG 1.x before 1.4.17 and 2.x before 2.0.24 allows context-dependent attackers to cause a denial of service (infinite loop) via malformed compressed packets, as demonstrated by an a3 01 5b ff byte sequence.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2014-4617 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of gnupg2 as shipped with Red Hat Enterprise Linux 5, 6 and 7 and gnupg as shipped with Red Hat Enterprise Linux 5. Red Hat Product Security has rated this issue as having Moderate security impact. A future update may address this issue. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 5 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise Linux 7 | gnupg2 | Fix deferred |
| Red Hat Enterprise Linux 6 | gnupg2 | Fix deferred |
| Red Hat Enterprise Linux 5 | gnupg | Fix deferred |
| Red Hat Enterprise Linux 5 | gnupg2 | Fix deferred |
Vulmon