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{
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"data_version" : "4.0" ,
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"data_type" : "CVE" ,
"data_format" : "MITRE" ,
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"ID" : "CVE-2023-6857" ,
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"ASSIGNER" : "security@mozilla.org" ,
"STATE" : "PUBLIC"
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} ,
"description" : {
"description_data" : [
{
"lang" : "eng" ,
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"value" : "When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. \n*This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121."
}
]
} ,
"problemtype" : {
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{
"description" : [
{
"lang" : "eng" ,
"value" : "Symlinks may resolve to smaller than expected buffers"
}
]
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}
]
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} ,
"affects" : {
"vendor" : {
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{
"vendor_name" : "Mozilla" ,
"product" : {
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{
"product_name" : "Firefox ESR" ,
"version" : {
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{
"version_affected" : "<" ,
"version_name" : "unspecified" ,
"version_value" : "115.6"
}
]
}
} ,
{
"product_name" : "Thunderbird" ,
"version" : {
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"version" : {
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}
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}
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}
} ,
"references" : {
"reference_data" : [
{
"url" : "https://bugzilla.mozilla.org/show_bug.cgi?id=1796023" ,
"refsource" : "MISC" ,
"name" : "https://bugzilla.mozilla.org/show_bug.cgi?id=1796023"
} ,
{
"url" : "https://www.mozilla.org/security/advisories/mfsa2023-54/" ,
"refsource" : "MISC" ,
"name" : "https://www.mozilla.org/security/advisories/mfsa2023-54/"
} ,
{
"url" : "https://www.mozilla.org/security/advisories/mfsa2023-55/" ,
"refsource" : "MISC" ,
"name" : "https://www.mozilla.org/security/advisories/mfsa2023-55/"
} ,
{
"url" : "https://www.mozilla.org/security/advisories/mfsa2023-56/" ,
"refsource" : "MISC" ,
"name" : "https://www.mozilla.org/security/advisories/mfsa2023-56/"
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} ,
{
"url" : "https://www.debian.org/security/2023/dsa-5581" ,
"refsource" : "MISC" ,
"name" : "https://www.debian.org/security/2023/dsa-5581"
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} ,
{
"url" : "https://www.debian.org/security/2023/dsa-5582" ,
"refsource" : "MISC" ,
"name" : "https://www.debian.org/security/2023/dsa-5582"
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} ,
{
"url" : "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html" ,
"refsource" : "MISC" ,
"name" : "https://lists.debian.org/debian-lts-announce/2023/12/msg00020.html"
} ,
{
"url" : "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html" ,
"refsource" : "MISC" ,
"name" : "https://lists.debian.org/debian-lts-announce/2023/12/msg00021.html"
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} ,
{
"url" : "https://security.gentoo.org/glsa/202401-10" ,
"refsource" : "MISC" ,
"name" : "https://security.gentoo.org/glsa/202401-10"
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}
]
} ,
"credits" : [
{
"lang" : "en" ,
"value" : "Jed Davis"
}
]
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}
