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Author Topic: Apache 2.4.25 updated to OpenSSL 1.0.2k  (Read 1800 times)

Gregg

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Apache 2.4.25 updated to OpenSSL 1.0.2k
« on: January 28, 2017, 12:26:24 AM »

The Apache 2.4.25 downloads have been updated to Openssl 1.0.2k.
You can get your copy with the new OpenSSL version from our download page.

Changes in OpenSSL 1.0.2k

CVE-2017-3731 [Moderate severity] 26th January 2017:
If an SSL/TLS server or client is running on a 32-bit host, and a specific cipher is being used, then a truncated packet can cause that server or client to perform an out-of-bounds read, usually resulting in a crash. For Openssl 1.0.2, the crash can be triggered when using RC4-MD5; users who have not disabled that algorithm should update to 1.0.2k Reported by Robert Święcki of Google.

CVE-2017-3732 [Moderate severity] 26th January 2017:
 There is a carry propagating bug in the x86_64 Montgomery squaring procedure. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. For example this can occur by default in OpenSSL DHE based SSL/TLS ciphersuites. Note: This issue is very similar to CVE-2015-3193 but must be treated as a separate problem. Reported by OSS-Fuzz project.

OpenSSL 1.0.1u users: You should consider yourselves vulnerable to both of these vulnerabilities as many 1.0.2 bugs are also in 1.0.1. OpenSSL 1.0.1 went EOL at the end of 2016 so there will not any updates to 1.0.1.

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