Vulnerability index

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Chicken CRITICAL 9.8
CVE-2022-45145

egg-compile.scm in CHICKEN 5.x before 5.3.1 allows arbitrary OS command execution during package installation via escape characters in a .egg file.

Fix: 5.3.1+
Fix from $2,300 2022-12-10
Chicken HIGH 8.8
CVE-2013-2075

Multiple buffer overflows in the (1) R5RS char-ready, (2) tcp-accept-ready, and (3) file-select procedures in Chicken through 4.8.0.3 allows attacker…

Fix: after 4.8.0.3
Fix from $1,950 2019-10-31
Chicken CRITICAL 9.8
CVE-2012-6125

Chicken before 4.8.0 is susceptible to algorithmic complexity attacks related to hash table collisions.

Fix: 4.8.0+
Fix from $2,300 2019-10-31
Chicken HIGH 7.5
CVE-2012-6122

Buffer overflow in the thread scheduler in Chicken before 4.8.0.1 allows attackers to cause a denial of service (crash) by opening a file descriptor …

Fix: 4.8.0.1+
Fix from $1,950 2019-10-31
Chicken MEDIUM 5.3
CVE-2012-6124

A casting error in Chicken before 4.8.0 on 64-bit platform caused the random number generator to return a constant value. NOTE: the vendor states "Th…

Fix: 4.8.0+
Fix from $1,600 2019-10-31
Chicken HIGH 7.5
CVE-2017-11343

Due to an incomplete fix for CVE-2012-6125, all versions of CHICKEN Scheme up to and including 4.12.0 are vulnerable to an algorithmic complexity att…

Fix: after 4.12.0
Fix from $1,950 2017-07-17
Spiffy HIGH 7.5
CVE-2015-8235

Directory traversal vulnerability in Spiffy before 5.4.

Fix: 5.4+
Fix from $1,950 2017-06-07
Chicken HIGH 7.5
CVE-2017-9334

An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, wh…

Fix: after 4.12.0
Fix from $1,950 2017-06-01
Chicken HIGH 7.5
CVE-2015-4556

The string-translate* procedure in the data-structures unit in CHICKEN before 4.10.0 allows remote attackers to cause a denial of service (crash).

Fix: after 4.9.0
Fix from $1,950 2017-03-29
Chicken HIGH 8.1
CVE-2017-6949

An issue was discovered in CHICKEN Scheme through 4.12.0. When using a nonstandard CHICKEN-specific extension to allocate an SRFI-4 vector in unmanag…

Patch available
Fix from $1,950 2017-03-16
Chicken CRITICAL 9.8
CVE-2016-6830

The "process-execute" and "process-spawn" procedures in CHICKEN Scheme used fixed-size buffers for holding the arguments and environment variables to…

Fix: after 4.11.0
Fix from $2,300 2017-01-10
Http Client HIGH 7.5
CVE-2016-6286

The "spiffy-cgi-handlers" egg would convert a nonexistent "Proxy" header to the HTTP_PROXY environment variable, which would allow attackers to direc…

Fix: after 0.4.2
Fix from $1,950 2017-01-10
Http Client HIGH 7.5
CVE-2016-6287

The "http-client" egg always used a HTTP_PROXY environment variable to determine whether HTTP traffic should be routed via a proxy, even when running…

Fix: after 0.9
Fix from $1,950 2017-01-10
Chicken HIGH 7.5
CVE-2016-6831

The "process-execute" and "process-spawn" procedures did not free memory correctly when the execve() call failed, resulting in a memory leak. This co…

Fix: after 4.11.0
Fix from $1,950 2017-01-10
Chicken HIGH 7.5
CVE-2014-9651

Buffer overflow in CHICKEN 4.9.0.x before 4.9.0.2, 4.9.x before 4.9.1, and before 5.0 allows attackers to have unspecified impact via a positive STAR…

Mitigation only
Fix from $1,950 2015-08-28
Chicken HIGH 7.5
CVE-2014-3776

Buffer overflow in the "read-u8vector!" procedure in the srfi-4 unit in CHICKEN stable 4.8.0.7 and development snapshots before 4.9.1 allows remote a…

Fix: after 4.9.0
Fix from $1,950 2014-05-20
Chicken HIGH 7.5
CVE-2013-4385

Buffer overflow in the "read-string!" procedure in the "extras" unit in CHICKEN stable before 4.8.0.5 and development snapshots before 4.8.3 allows r…

Fix: after 4.8.0.4
Fix from $1,950 2013-10-09