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VuXML ID	Description
d8382a69-4728-11e8-ba83-0011d823eebd	mbed TLS (PolarSSL) -- multiple vulnerabilities Simon Butcher reports: Defend against Bellcore glitch attacks by verifying the results of RSA private key operations. Fix implementation of the truncated HMAC extension. The previous implementation allowed an offline 2^80 brute force attack on the HMAC key of a single, uninterrupted connection (with no resumption of the session). Reject CRLs containing unsupported critical extensions. Found by Falko Strenzke and Evangelos Karatsiolis. Fix a buffer overread in ssl_parse_server_key_exchange() that could cause a crash on invalid input. Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a crash on invalid input. Discovery 2018-03-21 Entry 2018-04-23 mbedtls < 2.7.2 polarssl13 >= * https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released
c2f107e1-2493-11e8-b3e8-001cc0382b2f	mbed TLS (PolarSSL) -- remote code execution Simon Butcher reports: When the truncated HMAC extension is enabled and CBC is used, sending a malicious application packet can be used to selectively corrupt 6 bytes on the peer's heap, potentially leading to a crash or remote code execution. This can be triggered remotely from either side in both TLS and DTLS. When RSASSA-PSS signature verification is enabled, sending a maliciously constructed certificate chain can be used to cause a buffer overflow on the peer's stack, potentially leading to crash or remote code execution. This can be triggered remotely from either side in both TLS and DTLS. Discovery 2018-02-05 Entry 2018-03-10 mbedtls < 2.7.0 polarssl13 < 1.3.22 https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01 CVE-2018-0487 CVE-2018-0488

VuXML ID

Description

d8382a69-4728-11e8-ba83-0011d823eebd

mbed TLS (PolarSSL) -- multiple vulnerabilities

Simon Butcher reports:

Defend against Bellcore glitch attacks by verifying the results of RSA private key operations.

Fix implementation of the truncated HMAC extension. The previous implementation allowed an offline 2^80 brute force attack on the HMAC key of a single, uninterrupted connection (with no resumption of the session).

Reject CRLs containing unsupported critical extensions. Found by Falko Strenzke and Evangelos Karatsiolis.

Fix a buffer overread in ssl_parse_server_key_exchange() that could cause a crash on invalid input.

Fix a buffer overread in ssl_parse_server_psk_hint() that could cause a crash on invalid input.

Discovery 2018-03-21
Entry 2018-04-23
mbedtls

< 2.7.2

polarssl13

>= *

https://tls.mbed.org/tech-updates/releases/mbedtls-2.8.0-2.7.2-and-2.1.11-released

c2f107e1-2493-11e8-b3e8-001cc0382b2f

mbed TLS (PolarSSL) -- remote code execution

Simon Butcher reports:

When the truncated HMAC extension is enabled and CBC is used, sending a malicious application packet can be used to selectively corrupt 6 bytes on the peer's heap, potentially leading to a crash or remote code execution. This can be triggered remotely from either side in both TLS and DTLS.

When RSASSA-PSS signature verification is enabled, sending a maliciously constructed certificate chain can be used to cause a buffer overflow on the peer's stack, potentially leading to crash or remote code execution. This can be triggered remotely from either side in both TLS and DTLS.

Discovery 2018-02-05
Entry 2018-03-10
mbedtls

< 2.7.0

polarssl13

< 1.3.22

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2018-01
CVE-2018-0487
CVE-2018-0488