From 4745a484a6dd72e6aa7b56952535504b8252d6a6 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Tue, 16 Feb 2021 20:31:34 +0100 Subject: [PATCH] package/libopenssl: security bump to version 1.1.1j Fixes the following security issues: - CVE-2021-23841: Null pointer deref in X509_issuer_and_serial_hash() The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources. - CVE-2021-23839: Incorrect SSLv2 rollback protection OpenSSL 1.0.2 supports SSLv2. If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rollback attack when unpadding an RSA signature. Clients that support SSL or TLS versions greater than SSLv2 are supposed to use a special form of padding. A server that supports greater than SSLv2 is supposed to reject connection attempts from a client where this special form of padding is present, because this indicates that a version rollback has occurred (i.e. both client and server support greater than SSLv2, and yet this is the version that is being requested). The implementation of this padding check inverted the logic so that the connection attempt is accepted if the padding is present, and rejected if it is absent. This means that such as server will accept a connection if a version rollback attack has occurred. Further the server will erroneously reject a connection if a normal SSLv2 connection attempt is made. OpenSSL 1.1.1 does not have SSLv2 support and therefore is not vulnerable to this issue. The underlying error is in the implementation of the RSA_padding_check_SSLv23() function. This also affects the RSA_SSLV23_PADDING padding mode used by various other functions. Although 1.1.1 does not support SSLv2 the RSA_padding_check_SSLv23() function still exists, as does the RSA_SSLV23_PADDING padding mode. Applications that directly call that function or use that padding mode will encounter this issue. However since there is no support for the SSLv2 protocol in 1.1.1 this is considered a bug and not a security issue in that version. - CVE-2021-23840: Integer overflow in CipherUpdate Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. For more details, see the advisory: https://www.openssl.org/news/secadv/20210216.txt Signed-off-by: Peter Korsgaard --- package/libopenssl/libopenssl.hash | 4 ++-- package/libopenssl/libopenssl.mk | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/package/libopenssl/libopenssl.hash b/package/libopenssl/libopenssl.hash index 5e24ca17ae..854f8a03f7 100644 --- a/package/libopenssl/libopenssl.hash +++ b/package/libopenssl/libopenssl.hash @@ -1,5 +1,5 @@ -# From https://www.openssl.org/source/openssl-1.1.1i.tar.gz.sha256 -sha256 e8be6a35fe41d10603c3cc635e93289ed00bf34b79671a3a4de64fcee00d5242 openssl-1.1.1i.tar.gz +# From https://www.openssl.org/source/openssl-1.1.1j.tar.gz.sha256 +sha256 aaf2fcb575cdf6491b98ab4829abf78a3dec8402b8b81efc8f23c00d443981bf openssl-1.1.1j.tar.gz # License files sha256 c32913b33252e71190af2066f08115c69bc9fddadf3bf29296e20c835389841c LICENSE diff --git a/package/libopenssl/libopenssl.mk b/package/libopenssl/libopenssl.mk index 972ed534ba..19f1c89f06 100644 --- a/package/libopenssl/libopenssl.mk +++ b/package/libopenssl/libopenssl.mk @@ -4,7 +4,7 @@ # ################################################################################ -LIBOPENSSL_VERSION = 1.1.1i +LIBOPENSSL_VERSION = 1.1.1j LIBOPENSSL_SITE = https://www.openssl.org/source LIBOPENSSL_SOURCE = openssl-$(LIBOPENSSL_VERSION).tar.gz LIBOPENSSL_LICENSE = OpenSSL or SSLeay -- 2.30.2