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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1067 libav security update 1 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libav Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-1999012 CVE-2018-6392 CVE-2018-639 CVE-2017-1000460 CVE-2017-14058 CVE-2015-1872 Reference: ESB-2018.2075 Original Bulletin: https://lists.debian.org/debian-lts-announce/2019/03/msg00041.html - --------------------------BEGIN INCLUDED TEXT-------------------- Package : libav Version : 6:11.12-1~deb8u6 CVE ID : CVE-2015-1872 CVE-2017-14058 CVE-2017-1000460 CVE-2018-639 2=20 CVE-2018-1999012 Debian Bug : 20 Several security issues have been corrected in multiple demuxers and decoders of the libav multimedia library. CVE-2015-1872 The ff_mjpeg_decode_sof function in libavcodec/mjpegdec.c did not validate the number of components in a JPEG-LS Start Of Frame segment, which allowed remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted Motion JPEG data. CVE-2017-14058 The read_data function in libavformat/hls.c did not restrict reload attempts for an insufficient list, which allowed remote attackers to cause a denial of service (infinite loop). CVE-2017-1000460 In get_last_needed_nal() (libavformat/h264.c) the return value of init_get_bits was ignored and get_ue_golomb(&gb) was called on an uninitialized get_bits context, which caused a NULL deref exception. CVE-2018-6392 The filter_slice function in libavfilter/vf_transpose.c allowed remote attackers to cause a denial of service (out-of-array access) via a crafted MP4 file. CVE-2018-1999012 libav contained a CWE-835: Infinite loop vulnerability in pva format demuxer that could result in a vulnerability that allowed attackers to consume excessive amount of resources like CPU and RAM. This attack appeared to be exploitable via specially crafted PVA file had to be provided as input. For Debian 8 "Jessie", these problems have been fixed in version 6:11.12-1~deb8u6. We recommend that you upgrade your libav packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXKFbcWaOgq3Tt24GAQg+eg/+LRBwT9gGABDch82YEVB/XYI/mlZwfzQh a9pZKb5lwQvvJlHub7T09MHYBkHmwjTHxdz5dFFWpHZC8LPjpmLVKx1OfBmCrJLI pzMpiLRgFcy3oHuVxLvY5xbQfQo4vhiNSNUMJj/i8FfF3RKgTxjyq3EpeAvp0CpK BDiq3XQHQ3aRoVh2cRf/TR6s8wsk+ufvQk+OR7knqJ7a0EjZl2bylJKDJ8s67xfj /8LV9GVHf8dtsW5zZH00OzX0XBLmNvhU0bqF3Lv5tKOWtTWiOSPbS00S+/O7Dwu/ WT086m9IELeZw9xdR0Zgoh/UtwEiUg0pPFLVGSjw1/WVIW/H+UNKf8G+3eWokSjg 9ISxK/623Ln9/LlKW+G/IwmXhYqETS+ROOMAb99PTqlPJUcfzDEH/t1TKW58hNSx 9Xh2ykLR6oqM5rKwPdavUTepQNvgbWD/1C7kD/tH3Ngkmdv3cC7K3yGR5/hqXdy/ etE75qEQgpXrRG8XgzjNJ9VZyMJK0M7NUc42vBCzPzSr0utyhGOxe5Dy5sW+w486 bQMosJsb3DJHfWYH7wAfJyQ3B6hwrLsen3cpy7bJok5I/83KebMKIOZUr5FNw/y0 eWKKqsWMUTZLRMpU8+YnGcjSp9RKT9lazAHh1+Ev1KgmeDCeURxY8G5YdtHAIwmi ms+S3BQ51N0= =QitZ -----END PGP SIGNATURE-----