suse-su-2018:3440-1
Vulnerability from csaf_suse
Published
2018-10-25 12:19
Modified
2018-10-25 12:19
Summary
Security update for libgit2

Notes

Title of the patch
Security update for libgit2
Description of the patch
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)
Patchnames
SUSE-SLE-SDK-12-SP3-2018-2459,SUSE-SUSE-Manager-Server-3.1-2018-2459,SUSE-SUSE-Manager-Server-3.2-2018-2459
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

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      "text": "moderate"
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    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
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        "title": "Title of the patch"
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        "text": "This update for libgit2 fixes the following issues:\n\n- CVE-2018-8099: Fixed possible denial of service attack via different vectors by not being able to differentiate between these status codes (bsc#1085256).\n- CVE-2018-11235: With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs \u0027git clone --recurse-submodules\u0027 because submodule \u0027names\u0027 are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with \u0027../\u0027 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)\n- 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)\n- 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)\n- CVE-2018-15501: A remote attacker can send a crafted smart-protocol \u0027ng\u0027 packet that lacks a \u0027\\0\u0027 byte to trigger an out-of-bounds read that leads to DoS.  (bsc#1104641)\n",
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    "title": "Security update for libgit2",
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          "text": "https://www.suse.com/security/cve/CVE-2018-10887"
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          "category": "general",
          "text": "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.",
          "title": "CVE description"
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          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
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            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
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            "version": "3.0"
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      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
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          "url": "https://bugzilla.suse.com/1100612"
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            "version": "3.1"
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          "products": [
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            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
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            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
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          "category": "impact",
          "date": "2018-10-25T12:19:42Z",
          "details": "moderate"
        }
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      "title": "CVE-2018-10888"
    },
    {
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      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-11235"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
        }
      ],
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          "url": "https://www.suse.com/security/cve/CVE-2018-11235"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1095219 for CVE-2018-11235",
          "url": "https://bugzilla.suse.com/1095219"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
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      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-10-25T12:19:42Z",
          "details": "important"
        }
      ],
      "title": "CVE-2018-11235"
    },
    {
      "cve": "CVE-2018-15501",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15501"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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 \u0027\\0\u0027 byte to trigger an out-of-bounds read that leads to DoS.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
          "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
          "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
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      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15501",
          "url": "https://www.suse.com/security/cve/CVE-2018-15501"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1104641 for CVE-2018-15501",
          "url": "https://bugzilla.suse.com/1104641"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
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            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L",
            "version": "3.0"
          },
          "products": [
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            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
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            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
          ]
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      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-10-25T12:19:42Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-15501"
    },
    {
      "cve": "CVE-2018-8099",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-8099"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "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.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
          "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
          "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
          "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
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          "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-8099",
          "url": "https://www.suse.com/security/cve/CVE-2018-8099"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1085256 for CVE-2018-8099",
          "url": "https://bugzilla.suse.com/1085256"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1085257 for CVE-2018-8099",
          "url": "https://bugzilla.suse.com/1085257"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Software Development Kit 12 SP3:libgit2-24-0.24.1-7.6.1.x86_64",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.ppc64le",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
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            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.s390x",
            "SUSE Manager Server 3.1:libgit2-24-0.24.1-7.6.1.x86_64",
            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.ppc64le",
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            "SUSE Manager Server 3.2:libgit2-24-0.24.1-7.6.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-10-25T12:19:42Z",
          "details": "low"
        }
      ],
      "title": "CVE-2018-8099"
    }
  ]
}


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