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Debian Security Advisory 4539-1

Debian Security Advisory 4539-1
Posted Oct 2, 2019
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4539-1 - ECDSA, a padding oracle in PKCS7_dataDecode() and CMS_decrypt_set1_pkey() and it was discovered that a feature of the random number generator (RNG) intended to protect against shared RNG state between parent and child processes in the event of a fork() syscall was not used by default.

tags | advisory
systems | linux, debian
advisories | CVE-2019-1547, CVE-2019-1549, CVE-2019-1563
SHA-256 | bfbb11b91e11daa3793311922876b6211bfc3e40e8f82df31993c0acb0429b23

Debian Security Advisory 4539-1

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- -------------------------------------------------------------------------
Debian Security Advisory DSA-4539-1 security@debian.org
https://www.debian.org/security/ Moritz Muehlenhoff
October 01, 2019 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : openssl
CVE ID : CVE-2019-1547 CVE-2019-1549 CVE-2019-1563

Three security issues were discovered in OpenSSL: A timing attack against
ECDSA, a padding oracle in PKCS7_dataDecode() and CMS_decrypt_set1_pkey()
and it was discovered that a feature of the random number generator (RNG)
intended to protect against shared RNG state between parent and child
processes in the event of a fork() syscall was not used by default.

For the oldstable distribution (stretch), these problems have been fixed
in version 1.1.0l-1~deb9u1.

For the stable distribution (buster), these problems have been fixed in
version 1.1.1d-0+deb10u1.

We recommend that you upgrade your openssl packages.

For the detailed security status of openssl please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/openssl

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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