Next | Query returned 19 messages, browsing 11 to 20 | previous

History of commit frequency

CVS Commit History:


   2023-02-16 14:55:55 by Benny Siegert | Files touched by this commit (3) | Package updated
Log message:
go119: update to 1.19.6 (security)

This minor release includes 4 security fixes following the security policy:

- path/filepath: path traversal in filepath.Clean on Windows

  On Windows, the filepath.Clean function could transform an invalid path such
  as a/../c:/b into the valid path c:\b. This transformation of a relative (if
  invalid) path into an absolute path could enable a directory traversal
  attack.  The filepath.Clean function will now transform this path into the
  relative (but still invalid) path .\c:\b.

  Thanks to RyotaK (https://ryotak.net) for reporting this issue.

  This is CVE-2022-41722 and Go issue https://go.dev/issue/57274.

- net/http, mime/multipart: denial of service from excessive resource
  consumption

  Multipart form parsing with mime/multipart.Reader.ReadForm can consume
  largely unlimited amounts of memory and disk files. This also affects form
  parsing in the net/http package with the Request methods FormFile, FormValue,
  ParseMultipartForm, and PostFormValue.

  ReadForm takes a maxMemory parameter, and is documented as storing "up to
  maxMemory bytes +10MB (reserved for non-file parts) in memory". File parts
  which cannot be stored in memory are stored on disk in temporary files. The
  unconfigurable 10MB reserved for non-file parts is excessively large and can
  potentially open a denial of service vector on its own. However, ReadForm did
  not properly account for all memory consumed by a parsed form, such as map
  entry overhead, part names, and MIME headers, permitting a maliciously
  crafted form to consume well over 10MB. In addition, ReadForm contained no
  limit on the number of disk files created, permitting a relatively small
  request body to create a large number of disk temporary files.

  ReadForm now properly accounts for various forms of memory overhead, and
  should now stay within its documented limit of 10MB + maxMemory bytes of
  memory consumption. Users should still be aware that this limit is high and
  may still be hazardous.

  ReadForm now creates at most one on-disk temporary file, combining multiple
  form parts into a single temporary file. The mime/multipart.File interface
  type's documentation states, "If stored on disk, the File's underlying
  concrete type will be an *os.File.". This is no longer the case when a form
  contains more than one file part, due to this coalescing of parts into a
  single file. The previous behavior of using distinct files for each form part
  may be reenabled with the environment variable
  GODEBUG=multipartfiles=distinct.

  Users should be aware that multipart.ReadForm and the http.Request methods
  that call it do not limit the amount of disk consumed by temporary files.
  Callers can limit the size of form data with http.MaxBytesReader.

  Thanks to Arpad Ryszka and Jakob Ackermann (@das7pad) for reporting this
  issue.

  This is CVE-2022-41725 and Go issue https://go.dev/issue/58006.

- crypto/tls: large handshake records may cause panics

  Both clients and servers may send large TLS handshake records which cause
  servers and clients, respectively, to panic when attempting to construct
  responses.

  This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable
  session resumption (by setting Config.ClientSessionCache to a non-nil value),
  and TLS 1.3 servers which request client certificates (by setting
  Config.ClientAuth >= RequestClientCert).

  Thanks to Marten Seemann for reporting this issue.

  This is CVE-2022-41724 and Go issue https://go.dev/issue/58001.

- net/http: avoid quadratic complexity in HPACK decoding

  A maliciously crafted HTTP/2 stream could cause excessive CPU consumption in
  the HPACK decoder, sufficient to cause a denial of service from a small
  number of small requests.

  This issue is also fixed in golang.org/x/net/http2 v0.7.0, for users manually
  configuring HTTP/2.

  Thanks to Philippe Antoine (Catena cyber) for reporting this issue.

  This is CVE-2022-41723 and Go issue https://go.dev/issue/57855.
   2023-01-11 18:24:29 by Benny Siegert | Files touched by this commit (5) | Package updated
Log message:
go119: update to 1.19.5

go1.19.5 (released 2023-01-10) includes fixes to the compiler, the linker, and
the crypto/x509, net/http, sync/atomic, and syscall packages. See the Go 1.19.5
milestone on our issue tracker for details.
   2022-12-12 00:11:31 by Nikita | Files touched by this commit (3)
Log message:
golang119: apply backported fix.
   2022-12-08 11:37:26 by Benny Siegert | Files touched by this commit (3)
Log message:
Update go119 to 1.19.4 (security).

This minor release includes 2 security fixes following the security policy
<https://go.dev/security>:

- os, net/http: avoid escapes from os.DirFS and http.Dir on Windows

  The os.DirFS function and http.Dir type provide access to a tree of files
  rooted at a given directory. These functions permitted access to Windows
  device files under that root. For example, \ 
os.DirFS("C:/tmp").Open("COM1")
  would open the COM1 device.  Both os.DirFS and http.Dir only provide
  read-only filesystem access.

  In addition, on Windows, an os.DirFS for the directory \ (the root of the
  current drive) can permit a maliciously crafted path to escape from the drive
  and access any path on the system.

  The behavior of os.DirFS("") has changed. Previously, an empty root was
  treated equivalently to "/", so \ 
os.DirFS("").Open("tmp") would open the path
  "/tmp".  This now returns an error.

  This is CVE-2022-41720 and Go issue https://go.dev/issue/56694.

- net/http: limit canonical header cache by bytes, not entries

  An attacker can cause excessive memory growth in a Go server accepting HTTP/2
  requests.

  HTTP/2 server connections contain a cache of HTTP header keys sent by the
  client. While the total number of entries in this cache is capped, an
  attacker sending very large keys can cause the server to allocate
  approximately 64 MiB per open connection.

  This issue is also fixed in golang.org/x/net/http2, for users manually
  configuring HTTP/2.

  Thanks to Josselin Costanzi for reporting this issue.

  This is CVE-2022-41717 and Go issue https://go.dev/issue/56350.
   2022-11-01 18:41:11 by Benny Siegert | Files touched by this commit (3) | Package updated
Log message:
go119: update to 1.19.3

This release includes 1 security fixes following the security policy:

syscall, os/exec: unsanitized NUL in environment variables

On Windows, syscall.StartProcess and os/exec.Cmd did not properly check for
invalid environment variable values. A malicious environment variable value
could exploit this behavior to set a value for a different environment
variable. For example, the environment variable string "A=B\x00C=D" set the
variables "A=B" and "C=D".

Thanks to RyotaK (https://twitter.com/ryotkak) for reporting this issue.

This is CVE-2022-41716 and Go issue https://go.dev/issue/56284.

View the release notes for more information:
https://go.dev/doc/devel/release#go1.19.3
   2022-10-05 13:20:24 by Benny Siegert | Files touched by this commit (3)
Log message:
Update go119 to 1.19.2

This minor release includes 3 security fixes following the security policy:

- archive/tar: unbounded memory consumption when reading headers

  Reader.Read did 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.
  Reader.Read now limits the maximum size of header blocks to 1 MiB.

  Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue.

  This is CVE-2022-2879 and Go issue https://go.dev/issue/54853.

- net/http/httputil: ReverseProxy should not forward unparseable query parameters

  Requests forwarded by ReverseProxy included the raw query parameters from the
  inbound request, including unparseable parameters rejected by net/http. This
  could permit query parameter smuggling when a Go proxy forwards a parameter
  with an unparseable value.

  ReverseProxy will now sanitize 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.

  Thanks to Gal Goldstein (Security Researcher, Oxeye) and
  Daniel Abeles (Head of Research, Oxeye) for reporting this issue.

  This is CVE-2022-2880 and Go issue https://go.dev/issue/54663.

- regexp/syntax: limit memory used by parsing regexps

  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.

  Each regexp being parsed is now limited to a 256 MB memory footprint.
  Regular expressions whose representation would use more space than that
  are now rejected. Normal use of regular expressions is unaffected.

  Thanks to Adam Korczynski (ADA Logics) and OSS-Fuzz for reporting this issue.

  This is CVE-2022-41715 and Go issue https://go.dev/issue/55949.
   2022-09-17 12:13:56 by Benny Siegert | Files touched by this commit (2)
Log message:
go: be more verbose when building

Requested by nia@ during dev summit @EuroBSDCon
   2022-09-06 21:11:13 by Benny Siegert | Files touched by this commit (3) | Package updated
Log message:
go119: update to 1.19.1 (security)

This minor release includes 2 security fixes following the security policy:

net/http: handle server errors after sending GOAWAY

A closing HTTP/2 server connection could hang forever waiting for a clean
shutdown that was preempted by a subsequent fatal error. This failure mode
could be exploited to cause a denial of service.

Thanks to Bahruz Jabiyev, Tommaso Innocenti, Anthony Gavazzi, Steven Sprecher,
and Kaan Onarlioglu for reporting this.

This is CVE-2022-27664 and Go issue https://go.dev/issue/54658.

net/url: JoinPath does not strip relative path components in all circumstances

JoinPath and URL.JoinPath would not remove ../ path components appended to a
relative path. For example, JoinPath("https://go.dev", \ 
"../go") returned the
URL https://go.dev/../go, despite the JoinPath documentation stating that ../
path elements are cleaned from the result.

Thanks to q0jt for reporting this issue.

This is CVE-2022-32190 and Go issue https://go.dev/issue/54385.
   2022-08-22 11:44:48 by Tobias Nygren | Files touched by this commit (4)
Log message:
go119: s/118/119/ in some places

Next | Query returned 19 messages, browsing 11 to 20 | previous