DEBIAN-CVE-2019-1559
- Source
- https://security-tracker.debian.org/tracker/CVE-2019-1559
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-1559.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2019-1559
- Upstream
- Published
- 2019-02-27T23:29:00Z
- Modified
- 2025-09-30T03:54:39Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
If an application encounters a fatal protocol error and then calls SSLshutdown() twice (once to send a closenotify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable "non-stitched" ciphersuites must be in use. Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).
- References
Affected packages
Debian:11 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source
Debian:12 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source
Debian:13 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source
Debian:14 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source