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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1470 USN-4338-2: re2c vulnerability 29 April 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: re2c Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2020-11958 Reference: ESB-2020.1402 Original Bulletin: https://usn.ubuntu.com/4338-2/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4338-2: re2c vulnerability 28 April 2020 re2c vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 20.04 LTS Summary re2c could be made to execute arbitrary code if it received a specially crafted file. Software Description o re2c - tool for generating fast C-based recognizers Details USN-4338-1 fixed vulnerabilities in re2c. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details: Agostino Sarubbo discovered that re2c incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS re2c - 1.3-1ubuntu0.1 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . In general, a standard system update will make all the necessary changes. References o USN-4338-1 o CVE-2020-11958 - --------------------------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 iQIVAwUBXqjfAGaOgq3Tt24GAQhLVQ//a9bj4agI1auVP8muTr821v1za8GzcArT Gey8E2hOIvbCa92TB4BWq6KlvqmllOBzBs6LfYVWhLRpiZrIRnwkYZBZDYoRMXK1 s4mK2Y5hoIhNDYmxwzZhQnwVsrNhymqpFNvoRPFIvcGd7F/A1USg8p6A9lzVxU5T UmKQqc2gABSHEoYGnclXUQ65LYIflhaNHpGmdvGNRon1KyOPdl175y27aRduICC5 K7LDYoewgvCY3D6HbHR2GSzjYdGiFElWazBKeLUyhcQBZxCAPC8lbZItXFgNGCrX 84HUim//CtVM9OG2iASb8yNAqcSgscNoKamzp3QITkoUFEsUhsgzmFWFlgFKELYJ epXGudq1bpNLbyU7Aiymp9YL6JTofcKc6KTfaNdJWTYyQAS0rMYSNYT35ZJcI7zt gr7hPAsISeyi3uCLkPc4ePB9TTeONIvkrlAs1UicVdS+vCTHsBQczuahNe3GBBv1 HLWyJMD/Hp9pmLDHzx9e0RFu0RoTGr/xQyu284CcBRi2eYflRMaXULKo/2dotQKb m0Ne7NKuVztnwo8VC0iZ07eazRv3JYE/RnzTsBsEKb8A3evpB8oLCPeItp9p4NmW W8EeQDTYnOLQG7oQDYKGBZmCqRiLadC5EhO9aqcWFwGJ+Sbu6pOO4ixQGSVxsCUW 618JrO6h+8U= =m8jn -----END PGP SIGNATURE-----