VDB
CVE-2017-2624
CVE-2017-2624
PUBLISHED
CVSS 5.900000095367432 MEDIUM
It was found that xorg-x11-server before 1.19.0 including uses memcmp() to check the received MIT cookie against a series of valid cookies. If the cookie is correct, it is allowed to attach to the Xorg session. Since most memcmp() implementations return after an invalid byte is seen, this causes a time difference between a valid and invalid byte, which could allow an efficient brute force attack.
EPSS 0.70% · 53.0th percentile
Risk Scores
CVSS 3.0
5.900000095367432
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS Score
0.70%
53.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | xorg-server-hwe-16.04 | 0, 2:1.18.4-1ubuntu6.1~16.04.1 |
| Ubuntu:14.04:LTS | xorg-server | 2:1.14.3-5ubuntu1, 0, 2:1.14.3-3ubuntu2 |
| Ubuntu:16.04:LTS | xorg-server | 2:1.18.3-1ubuntu2.3, 2:1.17.2-1ubuntu9, 2:1.17.2-1ubuntu10 |
| Ubuntu:14.04:LTS | xorg-server-lts-xenial | 2:1.18.3-1ubuntu2.2~trusty2, 2:1.18.3-1ubuntu2.2~trusty3, 2:1.18.3-1ubuntu2.3~trusty1 |
Timeline
- Mar 1, 2017 CVE Published
- Mar 2, 2017 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 24, 2021 EPSS Score
- Aug 26, 2021 EPSS Score
- Oct 29, 2021 EPSS Score
- Dec 31, 2021 EPSS Score
- Mar 5, 2022 EPSS Score
- May 8, 2022 EPSS Score
- Jul 10, 2022 EPSS Score
- Sep 13, 2022 EPSS Score
- Nov 16, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2017-2624 advisory
- https://ubuntu.com/security/notices/USN-3362-1 advisory
- https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/ third-party-advisory
- http://openwall.com/lists/oss-security/2017/03/01/1 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2017-2624 third-party-advisory