Security update for libgit2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2018:3440-1 Final 1 1 2018-10-25T12:19:42Z current 2018-10-25T12:19:42Z 2018-10-25T12:19:42Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libgit2 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) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-SDK-12-SP3-2018-2459,SUSE-SUSE-Manager-Server-3.1-2018-2459,SUSE-SUSE-Manager-Server-3.2-2018-2459 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ Link for SUSE-SU-2018:3440-1 https://lists.suse.com/pipermail/sle-security-updates/2018-October/004790.html E-Mail link for SUSE-SU-2018:3440-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1085256 SUSE Bug 1085256 https://bugzilla.suse.com/1095219 SUSE Bug 1095219 https://bugzilla.suse.com/1100612 SUSE Bug 1100612 https://bugzilla.suse.com/1100613 SUSE Bug 1100613 https://bugzilla.suse.com/1104641 SUSE Bug 1104641 https://www.suse.com/security/cve/CVE-2018-10887/ SUSE CVE CVE-2018-10887 page https://www.suse.com/security/cve/CVE-2018-10888/ SUSE CVE CVE-2018-10888 page https://www.suse.com/security/cve/CVE-2018-11235/ SUSE CVE CVE-2018-11235 page https://www.suse.com/security/cve/CVE-2018-15501/ SUSE CVE CVE-2018-15501 page https://www.suse.com/security/cve/CVE-2018-8099/ SUSE CVE CVE-2018-8099 page SUSE Linux Enterprise Software Development Kit 12 SP3 SUSE Manager Server 3.1 SUSE Manager Server 3.2 libgit2-24-0.24.1-7.6.1 libgit2-24-0.24.1-7.6.1 as a component of SUSE Linux Enterprise Software Development Kit 12 SP3 libgit2-24-0.24.1-7.6.1 as a component of SUSE Manager Server 3.1 libgit2-24-0.24.1-7.6.1 as a component of SUSE Manager Server 3.2 A flaw was found in libgit2 before version 0.27.3. It has been discovered that an unexpected sign extension in git_delta_apply function in delta.c file may lead to an integer overflow which in turn leads to an out of bound read, allowing to read before the base object. An attacker may use this flaw to leak memory addresses or cause a Denial of Service. CVE-2018-10887 SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ https://www.suse.com/security/cve/CVE-2018-10887.html CVE-2018-10887 https://bugzilla.suse.com/1100613 SUSE Bug 1100613 A flaw was found in libgit2 before version 0.27.3. 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. CVE-2018-10888 SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ https://www.suse.com/security/cve/CVE-2018-10888.html CVE-2018-10888 https://bugzilla.suse.com/1100612 SUSE Bug 1100612 In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. 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. CVE-2018-11235 SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ https://www.suse.com/security/cve/CVE-2018-11235.html CVE-2018-11235 https://bugzilla.suse.com/1095219 SUSE Bug 1095219 In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, 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. CVE-2018-15501 SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ https://www.suse.com/security/cve/CVE-2018-15501.html CVE-2018-15501 https://bugzilla.suse.com/1104641 SUSE Bug 1104641 Incorrect returning of an error code in the index.c:read_entry() function leads to a double free in libgit2 before v0.26.2, which allows an attacker to cause a denial of service via a crafted repository index file. CVE-2018-8099 SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1 SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2018/suse-su-20183440-1/ https://www.suse.com/security/cve/CVE-2018-8099.html CVE-2018-8099 https://bugzilla.suse.com/1085256 SUSE Bug 1085256 https://bugzilla.suse.com/1085257 SUSE Bug 1085257