CVE-2020-27853
Last modified
CVE-2020-27853 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Wire before 2020-10-16 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a format string. This affects Wire AVS (Audio, Video, and Signaling) 5.3 through 6.x before 6.4, the Wire Secure Messenger application before 3.49.918 for Android, and the Wire Secure Messenger application before 3.61 for iOS. EPSS estimates a 3.78% chance of exploitation in the next 30 days.
Description
Wire before 2020-10-16 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a format string. This affects Wire AVS (Audio, Video, and Signaling) 5.3 through 6.x before 6.4, the Wire Secure Messenger application before 3.49.918 for Android, and the Wire Secure Messenger application before 3.61 for iOS. This occurs via the value parameter to sdp_media_set_lattr in peerflow/sdp.c.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wire | Wire | < 3.21.2936 |
| Wire | Wire | < 3.21.3932 |
| Wire | Wire | < 3.21.3959 |
| Wire | Wire - Audio\, Video\, And Signaling | >= 5.3, < 6.4 |
| Wire | Wire Secure Messenger | < 3.49.918 |
| Wire | Wire Secure Messenger | < 3.61 |
References
- http://github.security.telekom.com/2020/11/wire-secure-messenger-format-string-vulnerability.htmlExploit, Third Party Advisory
- https://github.com/wireapp/wire-audio-video-signaling/issues/23#issuecomment-710075689Exploit, Third Party Advisory
- http://github.security.telekom.com/2020/11/wire-secure-messenger-format-string-vulnerability.htmlExploit, Third Party Advisory
- https://github.com/wireapp/wire-audio-video-signaling/issues/23#issuecomment-710075689Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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