The original intent was to choose packages to which there is most
dependencies. However, since the code has evolved this is has been
mostly obsolete. And in fact now interferes with the provides and
provides priority mechanism. Remove this as obsolete.
Fixes#10742
Modify apk_resolve_[ug]id to take the user/groupname as a blob, so
proper length checking is done and honored.
==31584== Conditional jump or move depends on uninitialised value(s)
==31584== at 0x5C8CA5: strlen (strlen.c:17)
==31584== by 0x432575: APK_BLOB_STR (apk_blob.h:79)
==31584== by 0x4350EB: apk_resolve_uid (io.c:1112)
==31584== by 0x43696C: apk_tar_parse (io_archive.c:152)
==31584== by 0x4271BC: apk_pkg_read (package.c:929)
==31584== by 0x402D75: add_main (app_add.c:163)
==31584== by 0x40D5FF: main (apk-static.c:516)
Fixes a potential crash (DoS) on a crafted TAR file. CVE-2021-30139.
Reported-by: Sören Tempel <soeren+git@soeren-tempel.net>
Reviewed-by: Ariadne Conill <ariadne@dereferenced.org>
apk_dir_foreach_file and apk_resolve_[ug]id needs to free the fd in
case fdopen/fdopendir fails. Additionally this does not rely on fdopen
to fail if openat() returned -1, making sure that we don't call any
syscalls with invalid file handle.
This commit fixes a regression which was introduced in changeset
646c834492. If apk_out_fmt() is called
while out->log is set and prefix is set to APK_OUT_LOG_ONLY, then
apk_out_fmt() would pass this prefix to log_internal() which would, in
turn, attempt to write it to standard out using fprintf().
Unfortunately, doing so wont work as intended if prefix is ((char*)-1)
(i.e. APK_OUT_LOG_ONLY) and will cause a segmentation fault instead.
This commit fixes this segmentation fault by not printing the prefix in
log_internal() if it is either NULL or APK_OUT_LOG_ONLY.
This adds a log file at /var/log/apk.log. On each run, apk's version
information and the current date & time are written to this file,
followed by any normal apk output.
If we use default root (/), then we do not have to chroot to run scripts.
Use APK_NO_CHROOT flag for this scenario to avoid the chroot. This helps
with using apk with bwrap and OSTree.
Closes#10736.
The code assumed that when package is in world, it would be there
by it's primary name. The code is now updated to properly print the
package names that are actually present in world.
fixes#10718
If server redirects from http to https, libfetch detects this, but
wrongly uses the old url scheme to determine the port. This subsequently
leads to the following OpenSSL error:
139741541575496:error:1408F10B:SSL routines:ssl3_get_record:wrong version number:ssl/record/ssl3_record.c:331:
Using the new scheme fixes this. This error message comes from trying
to connect to port 80 with TLS, it can also be observed by issuing
$ openssl s_client -connect alpinelinux.org:80
This bug was introduced in commit:
7158474 libfetch: keep http auth only if redirect is for the same host
Especially a newline can produce havoc in the database file as
the filename is written there as-is. This hardenes the extraction
to consider any control character as malicious. Additional
hardening is added to database loading to better detect corrupt
state and return proper error code about it.
Reported-by: Luca Weiss <luca@z3ntu.xyz>
While commit 18b0b45 (io: Handle long lines, Thu Jan 7 17:25:23 2021
+0100) did attempt to address this issue, the buffer really is still to
small when dealing with big-big dependency lists.
Lets make it sufficiently large for now, until the new APKINDEX format
can support multi-line dependencies, making this not needed any more.
[TT: Originally the buffer size was conservative to run on resource
constrained embedded platforms. But since the available memory on those
has also increased much, the adjustment to 128kB makes sense also to
increase performance a little bit. Removing also the iolimit test.]
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
It turns out inflate() can output zero bytes, even if it consumed
data. This had the unfortunate side effect of returning zero bytes
(end-of-file) condition before calling the boundary callbacks. This
fixes the logic to not return zero reads on gzip boundary.
In practice this fixes the seldom seen issues of apk reporting
bad signature (when it was correct).
(De)initialization is deprecated under OpenSSL 1.0 and above.
[TT: Some simplifications, and additional edits.]
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Treat URLs with too long individual components as malformed instead
of silently truncating that field. There might be unexpected results
if hostname, username or password field gets truncated.
The connection pooling was broken in two ways:
1. The original URL was always used as the connection pool URL,
resulting in duplicate connections to the proxy for http URLs
(each http URL would get separate proxy connection)
2. The cache_url stored was always the socket level connect URL.
In case of HTTPS, the lookup was done done with the real URL,
but the proxy URL was stored as the "cache URL". Thus HTTPS
CONNECT connections were never re-used.
This fixes the code with following logic:
1. The cache key url is the real URL when no-proxy, or when HTTPS
with proxy (the socket is connected to proxy, but logically it
is connected to the real URL due to HTTP CONNECT request).
And for HTTP with proxy, it's the proxy URL so same proxy
connection can be reused for all requests going through it.
2. fetch_connect() now gets cache key URL separately, and it always
gets the same value as the fetch_cache_get() calls.
This enables matching numeric hosts against CIDR style subnet
matches in no_proxy environment variable.
Based on work by Thermi.
Co-authored-by: Noel Kuntze <noel.kuntze@thermi.consulting>
Regression introduced by 0fb0d30 which makes parsing a description
a critical failure.
[TT: Minor stylistic change. Fix also missing final line change
from the earlier commit]
As an APKINDEX can become arbitrarely long due to dependencies and
other parameters, increasing the buffer size make this less likely
to happens.
Closes#10731.
The new v3 applets don't use it, and eventually all applets will
use the new formats only.
This prepares the code for this, and moves trust, id_cache, and
root_fd to apk_ctx which is enough for v3 applets at this time.
The generic code is made to not initialize apk_database if it's
not needed.
Timo Teräs
Ariadne Conill