Security update for exim (critical)

openSUSE Security Update: Security update for exim Announcement ID: openSUSE-SU-2021:0753-1 Rating: critical References: 1079832 1136587 1142207 1154183 1160726 1171490 1171877 1173693 1185631 Cross-References: CVE-2017-1000369 CVE-2017-16943 CVE-2017-16944 CVE-2018-6789 CVE-2019-10149...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

Input validation

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

Denial Of Service (DoS)

exim4:buster is vulnerable to denial of service. The vulnerability exists because of failure to reset function pointer after BDAT error...

CVE-2020-28019

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA...

CVE-2017-16943

The receivemsg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service use-after-free via vectors involving BDAT commands. Mitigation if you are running Exim 4.88 or newer, then in the main section of your Exim...

CVE-2017-15325

The Bdat driver of Prague smart phones with software versions earlier than Prague-AL00AC00B211, versions earlier than Prague-AL00BC00B211, versions earlier than Prague-AL00CC00B211, versions earlier than Prague-TL00AC01B211, versions earlier than Prague-TL10AC01B211 has integer overflow...

CVE-2017-15325

The CVE-2017-15325 entry concerns Huawei Huawei smartphones with the Bdat driver, where lack of parameter validation causes an integer overflow. The vulnerability is triggered when a user is tricked into installing a malicious app, which can send crafted parameters to the Bdat driver and achieve ...

Huawei Honor 8 Bdat Driver Integer Overflow Vulnerability

Huawei Honor 8 Youth is a smartphone device. An integer overflow vulnerability exists in the Huawei Honor 8 Youth Edition Bdat driver. Due to a lack of parameter checking, an attacker can exploit the vulnerability to trick a user into installing a malicious application and executing it with...

Security Advisory - Integer overflow Vulnerability in Bdat Driver of Huawei Smart Phone

The Bdat driver of some Huawei smart phones has integer overflow vulnerability due to the lack of parameter validation. An attacker tricks a user into installing a malicious APP and execute it as a specific privilege; the APP can send a specific parameter to the driver of the smart phone, causing...

The vulnerability in the receive_msg function of the receive.c file of the SMTP daemon of the Debian GNU/Linux operating system’s mail server allows a attacker to cause a service failure or execute arbitrary code.

The vulnerability of the receivemsg function in receive.c of the SMTP daemon of the Debian GNU/Linux operating system’s mail server is related to the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code or cause a service failure the us...

Amazon Linux AMI : exim (ALAS-2017-932)

Use-after-free in receivemsg function via vectors involving BDAT commands The receivemsg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service use-after-free via vectors involving BDAT commands. CVE-2017-16943...

Critical: exim

Issue Overview: Use-after-free in receivemsg function via vectors involving BDAT commands The receivemsg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to execute arbitrary code or cause a denial of service use-after-free via vectors involving BDAT commands...

Internet Bug Bounty: Exim handles BDAT data incorrectly and leads to crash/hang

Original article is here Incorrect BDAT data handling leads to DoS Vulnerability Analysis When receiving data with BDAT command, SMTP server should not consider a single dot ‘.’ in a line to be the end of message. However, we found exim does in receivemsg when parsing header. Like the following...

Internet Bug Bounty: Exim use-after-free vulnerability while reading mail header involving BDAT commands

Original article is here Use-after-free in receivemsg leads to RCE Vulnerability Analysis To explain this bug, we need to start with the memory management of exim. There is a series of functions starts with store such as storeget, storerelease, storereset. These functions are used to manage...

Debian DSA-4053-1 : exim4 - security update

Several vulnerabilities have been discovered in Exim, a mail transport agent. The Common Vulnerabilities and Exposures project identifies the following issues : - CVE-2017-16943 A use-after-free vulnerability was discovered in Exim's routines responsible for parsing mail headers. A remote attacke...