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CVE-2023-29403

Unsafe behavior in setuid/setgid binaries in runtime

On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors closed, opening any files can result in unexpected content being read or written with elevated privileges. Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents of its registers.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Vendors
Fedoraproject Golang Redhat
Products
Fedora Go Devtools and 1 more
CVE-2023-29402

Code injection via go command with cgo in cmd/go

The go command may generate unexpected code at build time when using cgo. This may result in unexpected behavior when running a go program which uses cgo. This may occur when running an untrusted module which contains directories with newline characters in their names. Modules which are retrieved using the go command, i.e. via "go get", are not affected (modules retrieved using GOPATH-mode, i.e. GO111MODULE=off, may be affected).

CVSS 3.1 · 9.8 Critical EPSS 1.7% KEV · Not listed
Vendors
Fedoraproject Golang Redhat
Products
Fedora Go Ceph Storage and 2 more
CVE-2023-24538

Backticks not treated as string delimiters in html/template

Templates do not properly consider backticks (`) as Javascript string delimiters, and do not escape them as expected. Backticks are used, since ES6, for JS template literals. If a template contains a Go template action within a Javascript template literal, the contents of the action can be used to terminate the literal, injecting arbitrary Javascript code into the Go template. As ES6 template literals are rather complex, and themselves can do string interpolation, the decision was made to simply disallow Go template actions from being used inside of them (e.g. "var a = {{.}}"), since there is no obviously safe way to allow this behavior. This takes the same approach as github.com/google/safehtml. With fix, Template.Parse returns an Error when it encounters templates like this, with an ErrorCode of value 12. This ErrorCode is currently unexported, but will be exported in the release of Go 1.21. Users who rely on the previous behavior can re-enable it using the GODEBUG flag jstmpllitinterp=1, with the caveat that backticks will now be escaped. This should be used with caution.

CVSS 3.1 · 9.8 Critical EPSS 2.3% KEV · Not listed
Vendors
Golang Redhat
Products
Go Advanced Cluster Security Ansible Automation Platform and 18 more
CVE-2022-41715

Memory exhaustion when compiling regular expressions in regexp/syntax

Programs which compile regular expressions from untrusted sources may be vulnerable to memory exhaustion or denial of service. The parsed regexp representation is linear in the size of the input, but in some cases the constant factor can be as high as 40,000, making relatively small regexps consume much larger amounts of memory. After fix, each regexp being parsed is limited to a 256 MB memory footprint. Regular expressions whose representation would use more space than that are rejected. Normal use of regular expressions is unaffected.

CVSS 3.1 · 7.5 High EPSS 1.7% KEV · Not listed
Vendors
Golang Redhat
Products
Go Acm Ceph Storage and 21 more
CVE-2022-2880

Incorrect sanitization of forwarded query parameters in net/http/httputil

Requests forwarded by ReverseProxy include the raw query parameters from the inbound request, including unparsable parameters rejected by net/http. This could permit query parameter smuggling when a Go proxy forwards a parameter with an unparsable value. After fix, ReverseProxy sanitizes the query parameters in the forwarded query when the outbound request's Form field is set after the ReverseProxy. Director function returns, indicating that the proxy has parsed the query parameters. Proxies which do not parse query parameters continue to forward the original query parameters unchanged.

CVSS 3.1 · 7.5 High EPSS 1.4% KEV · Not listed
Vendors
Golang Redhat
Products
Go Acm Ceph Storage and 17 more
CVE-2022-2879

Unbounded memory consumption when reading headers in archive/tar

Reader.Read does not set a limit on the maximum size of file headers. A maliciously crafted archive could cause Read to allocate unbounded amounts of memory, potentially causing resource exhaustion or panics. After fix, Reader.Read limits the maximum size of header blocks to 1 MiB.

CVSS 3.1 · 7.5 High EPSS 2.0% KEV · Not listed
Vendors
Golang Redhat
Products
Go Container Native Virtualization Devtools and 13 more
CVE-2023-29400

Improper handling of empty HTML attributes in html/template

Templates containing actions in unquoted HTML attributes (e.g. "attr={{.}}") executed with empty input can result in output with unexpected results when parsed due to HTML normalization rules. This may allow injection of arbitrary attributes into tags.

CVSS 3.1 · 7.3 High EPSS 1.0% KEV · Not listed
Vendors
Golang Redhat
Products
Go Acm Advanced Cluster Security and 19 more
CVE-2023-24539

Improper sanitization of CSS values in html/template

Angle brackets (<>) are not considered dangerous characters when inserted into CSS contexts. Templates containing multiple actions separated by a '/' character can result in unexpectedly closing the CSS context and allowing for injection of unexpected HTML, if executed with untrusted input.

CVSS 3.1 · 7.3 High EPSS 1.0% KEV · Not listed
Vendors
Golang Redhat
Products
Go Acm Advanced Cluster Security and 19 more
CVE-2019-9514

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

CVSS 3.1 · 7.5 High EPSS 82.8% KEV · Not listed
Vendors
Apache Apple Canonical and 10 more
Products
Traffic Server Mac Os X Swiftnio and 41 more
CVE-2023-29405

Improper sanitization of LDFLAGS with embedded spaces in go command with cgo in cmd/go

The go command may execute arbitrary code at build time when using cgo. This may occur when running "go get" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a "#cgo LDFLAGS" directive. Flags containing embedded spaces are mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in the argument of another flag. This only affects usage of the gccgo compiler.

CVSS 3.1 · 9.8 Critical EPSS 1.7% KEV · Not listed
Vendors
Fedoraproject Golang Redhat
Products
Fedora Go Ceph Storage and 2 more
CVE-2023-29404

Improper handling of non-optional LDFLAGS in go command with cgo in cmd/go

The go command may execute arbitrary code at build time when using cgo. This may occur when running "go get" on a malicious module, or when running any other command which builds untrusted code. This is can by triggered by linker flags, specified via a "#cgo LDFLAGS" directive. The arguments for a number of flags which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers.

CVSS 3.1 · 9.8 Critical EPSS 1.8% KEV · Not listed
Vendors
Fedoraproject Golang Redhat
Products
Fedora Go Ceph Storage and 2 more
CVE-2022-30632

Stack exhaustion on crafted paths in path/filepath

Uncontrolled recursion in Glob in path/filepath before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via a path containing a large number of path separators.

CVSS 3.1 · 7.5 High EPSS 2.2% KEV · Not listed
Vendors
Golang Redhat
Products
Go Acm Application Interconnect and 15 more
CVE-2022-28131

Stack exhaustion from deeply nested XML documents in encoding/xml

Uncontrolled recursion in Decoder.Skip in encoding/xml before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via a deeply nested XML document.

CVSS 3.1 · 7.5 High EPSS 2.6% KEV · Not listed
Vendors
Fedoraproject Golang Netapp and 1 more
Products
Fedora Go Cloud Insights Telegraf and 13 more
CVE-2022-24921

golang: regexp: stack exhaustion via a deeply nested expression

regexp.Compile in Go before 1.16.15 and 1.17.x before 1.17.8 allows stack exhaustion via a deeply nested expression.

CVSS 3.1 · 7.5 High EPSS 3.2% KEV · Not listed
Vendors
Debian Golang Netapp and 1 more
Products
Debian Linux Go Astra Trident and 8 more
CVE-2021-44717

golang: syscall: don't close fd 0 on ForkExec error

Go before 1.16.12 and 1.17.x before 1.17.5 on UNIX allows write operations to an unintended file or unintended network connection as a consequence of erroneous closing of file descriptor 0 after file-descriptor exhaustion.

CVSS 3.1 · 4.8 Medium EPSS 2.0% KEV · Not listed
Vendors
Debian Golang Opengroup and 1 more
Products
Debian Linux Go Unix and 7 more
CVE-2021-44716

golang: net/http: limit growth of header canonicalization cache

net/http in Go before 1.16.12 and 1.17.x before 1.17.5 allows uncontrolled memory consumption in the header canonicalization cache via HTTP/2 requests.

CVSS 3.1 · 7.5 High EPSS 4.3% KEV · Not listed
Vendors
Debian Golang Netapp and 1 more
Products
Debian Linux Go Cloud Insights Telegraf and 13 more
CVE-2021-42574

environment: Unicode's bidirectional (BiDi) override characters can cause trojan source attacks

An issue was discovered in the Bidirectional Algorithm in the Unicode Specification through 14.0. It permits the visual reordering of characters via control sequences, which can be used to craft source code that renders different logic than the logical ordering of tokens ingested by compilers and interpreters. Adversaries can leverage this to encode source code for compilers accepting Unicode such that targeted vulnerabilities are introduced invisibly to human reviewers. NOTE: the Unicode Consortium offers the following alternative approach to presenting this concern. An issue is noted in the nature of international text that can affect applications that implement support for The Unicode Standard and the Unicode Bidirectional Algorithm (all versions). Due to text display behavior when text includes left-to-right and right-to-left characters, the visual order of tokens may be different from their logical order. Additionally, control characters needed to fully support the requirements of bidirectional text can further obfuscate the logical order of tokens. Unless mitigated, an adversary could craft source code such that the ordering of tokens perceived by human reviewers does not match what will be processed by a compiler/interpreter/etc. The Unicode Consortium has documented this class of vulnerability in its document, Unicode Technical Report #36, Unicode Security Considerations. The Unicode Consortium also provides guidance on mitigations for this class of issues in Unicode Technical Standard #39, Unicode Security Mechanisms, and in Unicode Standard Annex #31, Unicode Identifier and Pattern Syntax. Also, the BIDI specification allows applications to tailor the implementation in ways that can mitigate misleading visual reordering in program text; see HL4 in Unicode Standard Annex #9, Unicode Bidirectional Algorithm.

CVSS 3.1 · 8.3 High EPSS 12.9% KEV · Not listed
Vendors
Fedoraproject Redhat Starwindsoftware and 1 more
Products
Fedora Devtools Enterprise Linux and 7 more