Vulnerability from csaf_suse
Published
2022-06-14 09:52
Modified
2022-06-14 09:52
Summary
Security update for libyajl

Notes

Title of the patch
Security update for libyajl
Description of the patch
This update for libyajl fixes the following issue: - CVE-2022-24795: Fixed a heap-based buffer overflow when handling large inputs due to an integer overflow (bsc#1198405)
Patchnames
SUSE-2022-1746,SUSE-SLE-SDK-12-SP5-2022-1746,SUSE-SLE-SERVER-12-SP5-2022-1746
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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      distribution: {
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            relates_to_product_reference: "SUSE Linux Enterprise Server for SAP Applications 12 SP5",
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      ],
   },
   vulnerabilities: [
      {
         cve: "CVE-2022-24795",
         ids: [
            {
               system_name: "SUSE CVE Page",
               text: "https://www.suse.com/security/cve/CVE-2022-24795",
            },
         ],
         notes: [
            {
               category: "general",
               text: "yajl-ruby is a C binding to the YAJL JSON parsing and generation library. The 1.x branch and the 2.x branch of `yajl` contain an integer overflow which leads to subsequent heap memory corruption when dealing with large (~2GB) inputs. The reallocation logic at `yajl_buf.c#L64` may result in the `need` 32bit integer wrapping to 0 when `need` approaches a value of 0x80000000 (i.e. ~2GB of data), which results in a reallocation of buf->alloc into a small heap chunk. These integers are declared as `size_t` in the 2.x branch of `yajl`, which practically prevents the issue from triggering on 64bit platforms, however this does not preclude this issue triggering on 32bit builds on which `size_t` is a 32bit integer. Subsequent population of this under-allocated heap chunk is based on the original buffer size, leading to heap memory corruption. This vulnerability mostly impacts process availability. Maintainers believe exploitation for arbitrary code execution is unlikely. A patch is available and anticipated to be part of yajl-ruby version 1.4.2. As a workaround, avoid passing large inputs to YAJL.",
               title: "CVE description",
            },
         ],
         product_status: {
            recommended: [
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               "SUSE Linux Enterprise Software Development Kit 12 SP5:libyajl-devel-static-2.0.1-18.7.1.x86_64",
            ],
         },
         references: [
            {
               category: "external",
               summary: "CVE-2022-24795",
               url: "https://www.suse.com/security/cve/CVE-2022-24795",
            },
            {
               category: "external",
               summary: "SUSE Bug 1198405 for CVE-2022-24795",
               url: "https://bugzilla.suse.com/1198405",
            },
         ],
         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 Server 12 SP5:libyajl2-2.0.1-18.7.1.aarch64",
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               ],
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         ],
         scores: [
            {
               cvss_v3: {
                  baseScore: 5.9,
                  baseSeverity: "MEDIUM",
                  vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  version: "3.1",
               },
               products: [
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                  "SUSE Linux Enterprise Software Development Kit 12 SP5:libyajl-devel-2.0.1-18.7.1.s390x",
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               ],
            },
         ],
         threats: [
            {
               category: "impact",
               date: "2022-06-14T09:52:52Z",
               details: "moderate",
            },
         ],
         title: "CVE-2022-24795",
      },
   ],
}


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Nomenclature

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