ESB-2018.1953.2 - UPDATE [Debian] mercurial: Multiple vulnerabilities 2018-07-30
Printable versionPGP/GPG verifiable version
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1953.2 [DLA 1414-1] mercurial security update 30 July 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mercurial Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-1000132 CVE-2017-17458 CVE-2017-9462 Reference: ESB-2017.2211 ESB-2017.1481 Original Bulletin: https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html https://security-tracker.debian.org/tracker/DLA-1414-2 Revision History: July 30 2018: Fixed regression introduced by update for CVE-2017-17458 July 6 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Package : mercurial Version : 3.1.2-2+deb8u6 CVE ID : CVE-2017-17458 The fix for arbitrary code execution documented in CVE-2017-17458 was incomplete in the previous upload. A more exhaustive change was implemented upstream and completely disables non-Mercurial subrepositories unless users changed the subrepos.allowed setting. For Debian 8 "Jessie", this problem has been fixed in version 3.1.2-2+deb8u6. We recommend that you upgrade your mercurial 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 - --- Package : mercurial Version : 3.1.2-2+deb8u5 CVE ID : CVE-2017-9462 CVE-2017-17458 CVE-2018-1000132 Debian Bug : 861243 892964 901050 Some security vulnerabilities were found in Mercurial which allow authenticated users to trigger arbitrary code execution and unauthorized data access in certain server configuration. Malformed patches and repositories can also lead to crashes and arbitrary code execution on clients. CVE-2017-9462 In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name. CVE-2017-17458 In Mercurial before 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically. CVE-2018-1000132 Mercurial version 4.5 and earlier contains a Incorrect Access Control (CWE-285) vulnerability in Protocol server that can result in Unauthorized data access. This attack appear to be exploitable via network connectivity. This vulnerability appears to have been fixed in 4.5.1. OVE-20180430-0001 mpatch: be more careful about parsing binary patch data OVE-20180430-0002 mpatch: protect against underflow in mpatch_apply OVE-20180430-0004 mpatch: ensure fragment start isn't past the end of orig For Debian 8 "Jessie", these problems have been fixed in version 3.1.2-2+deb8u5. We recommend that you upgrade your mercurial 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 iQIVAwUBW15nu2aOgq3Tt24GAQggfg/+I7NvCPlZ5LOj15S35VQqC9KMBRiJlGAS wWpHWkkSqUtNGIB59L+zE8i0ETBUfXUgy0ccOaida71oX1ZfNFdLdrKcR97E5Q+s Eg4KVblmkwOpyIp3SHIhdLHFRCJ7+21cGuq0Rxwnc3u5iWqZYKnmWHXsdSiIxTmJ ipeUkkQdxim4pRFJhJ4f3zH6VI6Kyb7I43Lrzz/GBdKj4OO/LMA6wWfv/4B1jbp8 z3eYf7QqyHvM5zQB98Wqwepw0vZqXyEiV7WKP1DwUU1y1Tt3/jVAAjzqRekvjtyd wjyY2PVFqEqjsJ9PQwb+LKSE9o+FHAu/80nDfiobv40d/NULMesoL7M/7H4+9kAk QNUCgdFuiJ7l8zjvuSX9uyd1NsB6QyMGOjhOBHZCGztmGFIUejWIi0f1qb7MEvta ud9Oq4dYFEuzZav6U4LVVzEr1HvYHAde28Sn6rX8CJypNVhKZf2kl7G3VpV1I5UE ToDEL32esSuoBpxO4t6BA+dLflkRQ1qiITrDnefqwM4PPsBD9/hxk3+GTdym9RT4 xZO0f44aIx+3fVgdNqfIfe72MfnNRNrx81JIwyWeWdaiCnaEbqQW83ZfHc/eyLhM gbRDYpNMwGe4MLnakW2nCWtm+gY01cleHWWgB5KItXvJelpAfxGRuAj5cCRnegq7 E9Ay+P9Hfmc= =S7n1 -----END PGP SIGNATURE-----« Back to bulletins