Update CHANGES and NEWS
Updates to CHANGES and NEWS to take account of the latest security fixes. Reviewed-by: Rich Salz <rsalz@openssl.org>
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2 changed files with 71 additions and 1 deletions
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CHANGES
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CHANGES
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@ -4,6 +4,72 @@
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Changes between 1.0.1m and 1.0.1n [xx XXX xxxx]
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*) Malformed ECParameters causes infinite loop
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When processing an ECParameters structure OpenSSL enters an infinite loop
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if the curve specified is over a specially malformed binary polynomial
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field.
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This can be used to perform denial of service against any
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system which processes public keys, certificate requests or
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certificates. This includes TLS clients and TLS servers with
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client authentication enabled.
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This issue was reported to OpenSSL by Joseph Barr-Pixton.
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(CVE-2015-1788)
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[Andy Polyakov]
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*) Exploitable out-of-bounds read in X509_cmp_time
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X509_cmp_time does not properly check the length of the ASN1_TIME
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string and can read a few bytes out of bounds. In addition,
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X509_cmp_time accepts an arbitrary number of fractional seconds in the
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time string.
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An attacker can use this to craft malformed certificates and CRLs of
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various sizes and potentially cause a segmentation fault, resulting in
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a DoS on applications that verify certificates or CRLs. TLS clients
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that verify CRLs are affected. TLS clients and servers with client
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authentication enabled may be affected if they use custom verification
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callbacks.
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This issue was reported to OpenSSL by Robert Swiecki (Google), and
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independently by Hanno Böck.
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(CVE-2015-1789)
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[Emilia Käsper]
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*) PKCS7 crash with missing EnvelopedContent
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The PKCS#7 parsing code does not handle missing inner EncryptedContent
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correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs
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with missing content and trigger a NULL pointer dereference on parsing.
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Applications that decrypt PKCS#7 data or otherwise parse PKCS#7
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structures from untrusted sources are affected. OpenSSL clients and
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servers are not affected.
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This issue was reported to OpenSSL by Michal Zalewski (Google).
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(CVE-2015-1790)
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[Emilia Käsper]
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*) CMS verify infinite loop with unknown hash function
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When verifying a signedData message the CMS code can enter an infinite loop
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if presented with an unknown hash function OID. This can be used to perform
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denial of service against any system which verifies signedData messages using
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the CMS code.
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This issue was reported to OpenSSL by Johannes Bauer.
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(CVE-2015-1792)
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[Stephen Henson]
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*) Race condition handling NewSessionTicket
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If a NewSessionTicket is received by a multi-threaded client when attempting to
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reuse a previous ticket then a race condition can occur potentially leading to
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a double free of the ticket data.
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(CVE-2015-1791)
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[Matt Caswell]
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*) Reject DH handshakes with parameters shorter than 768 bits.
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[Kurt Roeckx and Emilia Kasper]
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6
NEWS
6
NEWS
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@ -7,7 +7,11 @@
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Major changes between OpenSSL 1.0.1m and OpenSSL 1.0.1n [under development]
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o
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o Malformed ECParameters causes infinite loop (CVE-2015-1788)
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o Exploitable out-of-bounds read in X509_cmp_time (CVE-2015-1789)
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o PKCS7 crash with missing EnvelopedContent (CVE-2015-1790)
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o CMS verify infinite loop with unknown hash function (CVE-2015-1792)
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o Race condition handling NewSessionTicket (CVE-2015-1791)
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Major changes between OpenSSL 1.0.1l and OpenSSL 1.0.1m [19 Mar 2015]
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