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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3291 SUSE Security Update: Security update for libgit2 26 October 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libgit2 Publisher: SUSE Operating System: SUSE Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-15501 CVE-2018-11235 CVE-2018-10888 CVE-2018-10887 CVE-2018-8099 Reference: ESB-2018.2522 ESB-2018.2488 Original Bulletin: https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for libgit2 ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:3440-1 Rating: moderate References: #1085256 #1095219 #1100612 #1100613 #1104641 Cross-References: CVE-2018-10887 CVE-2018-10888 CVE-2018-11235 CVE-2018-15501 CVE-2018-8099 Affected Products: SUSE Manager Server 3.2 SUSE Manager Server 3.1 SUSE Linux Enterprise Software Development Kit 12-SP3 ______________________________________________________________________________ An update that fixes 5 vulnerabilities is now available. Description: This update for libgit2 fixes the following issues: - CVE-2018-8099: Fixed possible denial of service attack via different vectors by not being able to differentiate between these status codes (bsc#1085256). - CVE-2018-11235: With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs "git clone --recurse-submodules" because submodule "names" are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with "../" in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server. (bsc#1095219) - CVE-2018-10887: It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may have lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker could have used this flaw to leak memory addresses or cause a Denial of Service. (bsc#1100613) - CVE-2018-10888: A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service. (bsc#1100612) - CVE-2018-15501: A remote attacker can send a crafted smart-protocol "ng" packet that lacks a '\0' byte to trigger an out-of-bounds read that leads to DoS. (bsc#1104641) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Manager Server 3.2: zypper in -t patch SUSE-SUSE-Manager-Server-3.2-2018-2459=1 - SUSE Manager Server 3.1: zypper in -t patch SUSE-SUSE-Manager-Server-3.1-2018-2459=1 - SUSE Linux Enterprise Software Development Kit 12-SP3: zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-2459=1 Package List: - SUSE Manager Server 3.2 (ppc64le s390x x86_64): libgit2-24-0.24.1-7.6.1 libgit2-24-debuginfo-0.24.1-7.6.1 libgit2-debugsource-0.24.1-7.6.1 - SUSE Manager Server 3.1 (ppc64le s390x x86_64): libgit2-24-0.24.1-7.6.1 libgit2-24-debuginfo-0.24.1-7.6.1 libgit2-debugsource-0.24.1-7.6.1 - SUSE Linux Enterprise Software Development Kit 12-SP3 (x86_64): libgit2-24-0.24.1-7.6.1 libgit2-24-debuginfo-0.24.1-7.6.1 libgit2-debugsource-0.24.1-7.6.1 References: https://www.suse.com/security/cve/CVE-2018-10887.html https://www.suse.com/security/cve/CVE-2018-10888.html https://www.suse.com/security/cve/CVE-2018-11235.html https://www.suse.com/security/cve/CVE-2018-15501.html https://www.suse.com/security/cve/CVE-2018-8099.html https://bugzilla.suse.com/1085256 https://bugzilla.suse.com/1095219 https://bugzilla.suse.com/1100612 https://bugzilla.suse.com/1100613 https://bugzilla.suse.com/1104641 - --------------------------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). 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