- #ZULU OPENJDK VERSION 11 HOW TO#
- #ZULU OPENJDK VERSION 11 UPGRADE#
- #ZULU OPENJDK VERSION 11 FULL#
- #ZULU OPENJDK VERSION 11 VERIFICATION#
- #ZULU OPENJDK VERSION 11 CODE#
The infinite loop can also be reached when parsing crafted private keys as they can contain explicit elliptic curve parameters.
#ZULU OPENJDK VERSION 11 VERIFICATION#
Since certificate parsing happens prior to verification of the certificate signature, any process that parses an externally supplied certificate may thus be subject to a denial of service attack. It is possible to trigger the infinite loop by crafting a certificate that has invalid explicit curve parameters. Internally this function is used when parsing certificates that contain elliptic curve public keys in compressed form or explicit elliptic curve parameters with a base point encoded in compressed form. The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli.
#ZULU OPENJDK VERSION 11 UPGRADE#
Upgrade Alpine:3.12 openssl to version 1.1.1j-r0 or higher.
Premium support customers of OpenSSL 1.0.2 should upgrade to 1.0.2y. However OpenSSL 1.0.2 is out of support and no longer receiving public updates. OpenSSL versions 1.0.2x and below are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1j. OpenSSL versions 1.1.1i and below are affected by this issue. This could cause applications to behave incorrectly or crash. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. ReferencesĬalls 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. Upgrade Alpine:3.12 openssl to version 1.1.1l-r0 or higher. The location of the buffer is application dependent but is typically heap allocated. A malicious attacker who is able present SM2 content for decryption to an application could cause attacker chosen data to overflow the buffer by up to a maximum of 62 bytes altering the contents of other data held after the buffer, possibly changing application behaviour or causing the application to crash. This can lead to a buffer overflow when EVP_PKEY_decrypt() is called by the application a second time with a buffer that is too small.
#ZULU OPENJDK VERSION 11 CODE#
A bug in the implementation of the SM2 decryption code means that the calculation of the buffer size required to hold the plaintext returned by the first call to EVP_PKEY_decrypt() can be smaller than the actual size required by the second call. The application can then allocate a sufficiently sized buffer and call EVP_PKEY_decrypt() again, but this time passing a non-NULL value for the "out" parameter. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the buffer size required to hold the decrypted plaintext.
Typically an application will call this function twice. In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt().
#ZULU OPENJDK VERSION 11 HOW TO#
See How to fix? for Alpine:3.12 relevant versions. Note: Versions mentioned in the description apply to the upstream openssl package. Upgrade Alpine:3.12 libx11 to version 1.6.12-r1 or higher.
#ZULU OPENJDK VERSION 11 FULL#
For example, if the victim encounters malicious terminal control sequences for color codes, then the attacker may be able to take full control of the running graphical session. The user-controlled data exceeding the maximum size is then interpreted by the server as additional X protocol requests and executed, e.g., to disable X server authorization completely. The libX11 XLookupColor request (intended for server-side color lookup) contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allowed by the protocol (and also longer than the maximum packet size for normal-sized packets). LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. Note: Versions mentioned in the description apply to the upstream libx11 package.
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