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cli_check_mydoom_log: Avoid unaligned access. #1293
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sebastianas
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This just built in Debian and it also fixed a long standing issue on sparc64 which existed since the 1.0.0 version. |
thanks for the nice and quick fix! |
micahsnyder
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Jul 22, 2024
fmap_need_off_once() may return an unaligned pointer. This in return leads to an unaligned access during the load of the uint32_t variables loading to failures on architectures not supporting unaligned access. This was reported to the Debian BTS as #1073128. [bigeasy: Commit message, reworked the patch a bit]. Link: https://bugs.debian.org/1073128 Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
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This was referenced Aug 13, 2024
mtremer
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Sep 5, 2024
- Update from version 1.3.1 to 1.3.2 - Update of rootfile - 2 CVE Fixes - Changelog 1.3.2 - [CVE-2024-20506](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20506): Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' or 'freshclam' services from using a symlink to corrupt system files. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to Detlef for identifying this issue. - [CVE-2024-20505](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20505): Fixed a possible out-of-bounds read bug in the PDF file parser that could cause a denial-of-service (DoS) condition. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to OSS-Fuzz for identifying this issue. - Removed unused Python modules from freshclam tests including deprecated 'cgi' module that is expected to cause test failures in Python 3.13. - Fix unit test caused by expiring signing certificate. - Backport of [GitHub pull request](Cisco-Talos/clamav#1305) - Fixed a build issue on Windows with newer versions of Rust. Also upgraded GitHub Actions imports to fix CI failures. Fixes courtesy of liushuyu. - Backport of [GitHub pull request](Cisco-Talos/clamav#1307) - Fixed an unaligned pointer dereference issue on select architectures. Fix courtesy of Sebastian Andrzej Siewior. - Backport of [GitHub pull request](Cisco-Talos/clamav#1293) - Fixes to Jenkins CI pipeline. For details, see [GitHub pull request](Cisco-Talos/clamav#1330) Signed-off-by: Adolf Belka <[email protected]> Signed-off-by: Michael Tremer <[email protected]>
netbsd-srcmastr
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Sep 8, 2024
0.103.12 (2024-09-04) ClamAV 0.103.12 is a patch release with the following fixes: - [CVE-2024-20506](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20506): Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' or 'freshclam' services from using a symlink to corrupt system files. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to Detlef for identifying this issue. - [CVE-2024-20505](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20505): Fixed a possible out-of-bounds read bug in the PDF file parser that could cause a denial-of-service (DoS) condition. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to OSS-Fuzz for identifying this issue. - ClamOnAcc: Fixed an infinite loop when a watched directory does not exist. - [GitHub pull request](Cisco-Talos/clamav#1198) - Fixed a bug causing CVDs downloaded by the `DatabaseCustomURL` Freshclam config option to be pruned and then re-downloaded with every update. Also added the new 'valhalla' database name to the list of optional databases in preparation for future work. - Backport of [GitHub pull request](Cisco-Talos/clamav#1233) - Fixed an unaligned pointer dereference issue on select architectures. Fix courtesy of Sebastian Andrzej Siewior. - Backport of [GitHub pull request](Cisco-Talos/clamav#1293)
mtremer
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Jan 9, 2025
- Update from version 1.3.2 to 1.4.1 - Update of rootfile - Changelog 1.4.1 ClamAV 1.4.1 is a critical patch release with the following fixes: - [CVE-2024-20506](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20506): Changed the logging module to disable following symlinks on Linux and Unix systems so as to prevent an attacker with existing access to the 'clamd' or 'freshclam' services from using a symlink to corrupt system files. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to Detlef for identifying this issue. - [CVE-2024-20505](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-20505): Fixed a possible out-of-bounds read bug in the PDF file parser that could cause a denial-of-service (DoS) condition. This issue affects all currently supported versions. It will be fixed in: - 1.4.1 - 1.3.2 - 1.0.7 - 0.103.12 Thank you to OSS-Fuzz for identifying this issue. - Removed unused Python modules from freshclam tests including deprecated 'cgi' module that is expected to cause test failures in Python 3.13. 1.4.0 Major changes - Added support for extracting ALZ archives. The new ClamAV file type for ALZ archives is `CL_TYPE_ALZ`. Added a [DCONF](https://docs.clamav.net/manual/Signatures/DynamicConfig.html) option to enable or disable ALZ archive support. > _Tip_: DCONF (Dynamic CONFiguration) is a feature that allows for some > configuration changes to be made via ClamAV `.cfg` "signatures". - [GitHub pull request](Cisco-Talos/clamav#1183) - Added support for extracting LHA/LZH archives. The new ClamAV file type for LHA/LZH archives is `CL_TYPE_LHA_LZH`. Added a [DCONF](https://docs.clamav.net/manual/Signatures/DynamicConfig.html) option to enable or disable LHA/LZH archive support. - [GitHub pull request](Cisco-Talos/clamav#1192) - Added the ability to disable image fuzzy hashing, if needed. For context, image fuzzy hashing is a detection mechanism useful for identifying malware by matching images included with the malware or phishing email/document. New ClamScan options: ``` --scan-image[=yes(*)/no] --scan-image-fuzzy-hash[=yes(*)/no] ``` New ClamD config options: ``` ScanImage yes(*)/no ScanImageFuzzyHash yes(*)/no ``` New libclamav scan options: ```c options.parse &= ~CL_SCAN_PARSE_IMAGE; options.parse &= ~CL_SCAN_PARSE_IMAGE_FUZZY_HASH; ``` Added a [DCONF](https://docs.clamav.net/manual/Signatures/DynamicConfig.html) option to enable or disable image fuzzy hashing support. - [GitHub pull request](Cisco-Talos/clamav#1186) Other improvements - Added cross-compiling instructions for targeting ARM64/aarch64 processors for [Windows](https://github.com/Cisco-Talos/clamav/blob/main/INSTALL-cross-windows-arm64.md) and [Linux](https://github.com/Cisco-Talos/clamav/blob/main/INSTALL-cross-linux-arm64.md). - [GitHub pull request](Cisco-Talos/clamav#1116) - Improved the Freshclam warning messages when being blocked or rate limited so as to include the Cloudflare Ray ID, which helps with issue triage. - [GitHub pull request](Cisco-Talos/clamav#1195) - Removed unnecessary memory allocation checks when the size to be allocated is fixed or comes from a trusted source. We also renamed internal memory allocation functions and macros, so it is more obvious what each function does. - [GitHub pull request](Cisco-Talos/clamav#1137) - Improved the Freshclam documentation to make it clear that the `--datadir` option must be an absolute path to a directory that already exists, is writable by Freshclam, and is readable by ClamScan and ClamD. - [GitHub pull request](Cisco-Talos/clamav#1199) - Added an optimization to avoid calculating the file hash if the clean file cache has been disabled. The file hash may still be calculated as needed to perform hash-based signature matching if any hash-based signatures exist that target a file of the same size, or if any hash-based signatures exist that target "any" file size. - [GitHub pull request](Cisco-Talos/clamav#1167) - Added an improvement to the SystemD service file for ClamOnAcc so that the service will shut down faster on some systems. - [GitHub pull request](Cisco-Talos/clamav#1164) - Added a CMake build dependency on the version map files so that the build will re-run if changes are made to the version map files. Work courtesy of Sebastian Andrzej Siewior. - [GitHub pull request](Cisco-Talos/clamav#1294) - Added an improvement to the CMake build so that the RUSTFLAGS settings are inherited from the environment. Work courtesy of liushuyu. - [GitHub pull request](Cisco-Talos/clamav#1301) Bug fixes - Silenced confusing warning message when scanning some HTML files. - [GitHub pull request](Cisco-Talos/clamav#1252) - Fixed minor compiler warnings. - [GitHub pull request](Cisco-Talos/clamav#1197) - Since the build system changed from Autotools to CMake, ClamAV no longer supports building with configurations where bzip2, libxml2, libz, libjson-c, or libpcre2 are not available. Libpcre is no longer supported in favor of libpcre2. In this release, we removed all the dead code associated with those unsupported build configurations. - [GitHub pull request](Cisco-Talos/clamav#1217) - Fixed assorted typos. Patch courtesy of RainRat. - [GitHub pull request](Cisco-Talos/clamav#1228) - Added missing documentation for the ClamScan `--force-to-disk` option. - [GitHub pull request](Cisco-Talos/clamav#1186) - Fixed an issue where ClamAV unit tests would prefer an older libclamunrar_iface library from the install path, if present, rather than the recently compiled library in the build path. - [GitHub pull request](Cisco-Talos/clamav#1258) - Fixed a build issue on Windows with newer versions of Rust. Also upgraded GitHub Actions imports to fix CI failures. Fixes courtesy of liushuyu. - [GitHub pull request](Cisco-Talos/clamav#1307) - Fixed an unaligned pointer dereference issue on select architectures. Fix courtesy of Sebastian Andrzej Siewior. - [GitHub pull request](Cisco-Talos/clamav#1293) - Fixed a bug that prevented loading plaintext (non-CVD) signature files when using the `--fail-if-cvd-older-than=DAYS` / `FailIfCvdOlderThan` option. Fix courtesy of Bark. - [GitHub pull request](Cisco-Talos/clamav#1309) Signed-off-by: Adolf Belka <[email protected]> Signed-off-by: Arne Fitzenreiter <[email protected]>
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fmap_need_off_once() may return an unaligned pointer. This in return leads to an unaligned access during the load of the uint32_t variables loading to failures on architectures not supporting unaligned access.
This was reported to the Debian BTS as #1073128.
[bigeasy: Commit message, reworked the patch a bit].
Link: https://bugs.debian.org/1073128