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Package details: pkg:deb/debian/thunderbird@1:91.4.1-1~deb11u1?distro=trixie
purl pkg:deb/debian/thunderbird@1:91.4.1-1~deb11u1?distro=trixie
Vulnerabilities affecting this package (0)
Vulnerability Summary Fixed by
This package is not known to be affected by vulnerabilities.
Vulnerabilities fixed by this package (25)
Vulnerability Summary Aliases
VCID-1mm2-4b1k-afat Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') The olm_session_describe function in Matrix libolm is vulnerable to a buffer overflow. The Olm session object represents a cryptographic channel between two parties. Therefore, its state is partially controllable by the remote party of the channel. Attackers can construct a crafted sequence of messages to manipulate the state of the receiver's session in such a way that, for some buffer sizes, a buffer overflow happens on a call to olm_session_describe. Furthermore, safe buffer sizes were undocumented. The overflow content is partially controllable by the attacker and limited to ASCII spaces and digits. The known affected products are Element Web And SchildiChat Web. CVE-2021-44538
VCID-1ryc-yvxd-93e2 Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43529
VCID-2k99-39yt-gkbe During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. CVE-2021-38496
VCID-2vyc-yhw7-muea Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43546
VCID-6fkp-5fzu-fydp Mozilla developers and community members Andreas Pehrson and Christian Holler reported memory safety bugs present in Thunderbird 91.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. CVE-2021-38500
VCID-7458-uqdr-5fg7 Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43541
VCID-b8c2-qrxm-sybt Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38508
VCID-b911-qnc2-x3aj Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38509
VCID-bqyj-qnak-eydy Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43543
VCID-c51s-yenc-4yab Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38504
VCID-ddem-1dt1-uff7 Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38503
VCID-jy6e-d578-nkcg Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38507
VCID-k4e4-363e-xyff Mozilla developers and community members Christian Holler, Valentin Gosu, and Andrew McCreight reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. CVE-2021-43534
VCID-khsw-jwtm-8faq A use-after-free could have occurred when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. CVE-2021-43535
VCID-n4kc-y37w-qkdk Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-38506
VCID-pbhu-5gkn-qkb8 When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a message footer added by a mailing list gateway, Thunderbird only considered the inner signed message for the signature validity. This gave the false impression that the additional contents were also covered by the digital signature. Starting with Thunderbird version 91.4.1, only the signature that belongs to the top level MIME part will be considered for the displayed status. CVE-2021-4126
VCID-qd4e-g5zv-1ucf Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43539
VCID-rq11-qm9e-7ubk Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43545
VCID-utn7-mdgr-z7em Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43538
VCID-vc9x-hjtc-q3f1 Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43536
VCID-xud3-4s7g-rkcv Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43537
VCID-yuex-f2ae-ffft Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43542
VCID-z19z-zu3b-5khe Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-4129
VCID-zr32-w34c-3ygt Multiple vulnerabilities have been found in Mozilla Thunderbird, the worst of which could result in the arbitrary execution of code. CVE-2021-43528
VCID-zwz9-pt55-t3c6 Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication method was configured, the MITM could obtain the authentication credentials, too. CVE-2021-38502

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-16T13:27:34.638094+00:00 Debian Importer Fixing VCID-k4e4-363e-xyff https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T13:19:49.378278+00:00 Debian Importer Fixing VCID-ddem-1dt1-uff7 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T13:19:19.287077+00:00 Debian Importer Fixing VCID-2k99-39yt-gkbe https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T13:14:12.313374+00:00 Debian Importer Fixing VCID-bqyj-qnak-eydy https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:51:39.398022+00:00 Debian Importer Fixing VCID-pbhu-5gkn-qkb8 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:48:45.567593+00:00 Debian Importer Fixing VCID-c51s-yenc-4yab https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:45:28.383609+00:00 Debian Importer Fixing VCID-jy6e-d578-nkcg https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:19:41.410034+00:00 Debian Importer Fixing VCID-rq11-qm9e-7ubk https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:19:41.206682+00:00 Debian Importer Fixing VCID-zr32-w34c-3ygt https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T12:18:14.959542+00:00 Debian Importer Fixing VCID-2vyc-yhw7-muea https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T11:41:44.529593+00:00 Debian Importer Fixing VCID-n4kc-y37w-qkdk https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T11:22:05.879420+00:00 Debian Importer Fixing VCID-1ryc-yvxd-93e2 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T10:24:59.225839+00:00 Debian Importer Fixing VCID-z19z-zu3b-5khe https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T10:18:45.419783+00:00 Debian Importer Fixing VCID-xud3-4s7g-rkcv https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T10:00:59.639325+00:00 Debian Importer Fixing VCID-yuex-f2ae-ffft https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:55:32.903916+00:00 Debian Importer Fixing VCID-6fkp-5fzu-fydp https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:48:39.884447+00:00 Debian Importer Fixing VCID-7458-uqdr-5fg7 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:32:58.272765+00:00 Debian Importer Fixing VCID-zwz9-pt55-t3c6 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:18:23.534365+00:00 Debian Importer Fixing VCID-1mm2-4b1k-afat https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:10:48.094234+00:00 Debian Importer Fixing VCID-b8c2-qrxm-sybt https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:07:57.978288+00:00 Debian Importer Fixing VCID-khsw-jwtm-8faq https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:49:57.014902+00:00 Debian Importer Fixing VCID-qd4e-g5zv-1ucf https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:49:12.459155+00:00 Debian Importer Fixing VCID-utn7-mdgr-z7em https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:48:38.262238+00:00 Debian Importer Fixing VCID-b911-qnc2-x3aj https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:47:30.426170+00:00 Debian Importer Fixing VCID-vc9x-hjtc-q3f1 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-13T09:17:15.343510+00:00 Debian Importer Fixing VCID-k4e4-363e-xyff https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T09:11:10.099967+00:00 Debian Importer Fixing VCID-ddem-1dt1-uff7 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T09:10:45.971663+00:00 Debian Importer Fixing VCID-2k99-39yt-gkbe https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T09:06:49.485768+00:00 Debian Importer Fixing VCID-bqyj-qnak-eydy https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:49:38.110488+00:00 Debian Importer Fixing VCID-pbhu-5gkn-qkb8 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:47:23.939620+00:00 Debian Importer Fixing VCID-c51s-yenc-4yab https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:44:57.586643+00:00 Debian Importer Fixing VCID-jy6e-d578-nkcg https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:25:59.213843+00:00 Debian Importer Fixing VCID-rq11-qm9e-7ubk https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:25:59.045289+00:00 Debian Importer Fixing VCID-zr32-w34c-3ygt https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T08:24:56.353757+00:00 Debian Importer Fixing VCID-2vyc-yhw7-muea https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T07:58:10.924243+00:00 Debian Importer Fixing VCID-n4kc-y37w-qkdk https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T07:44:25.628788+00:00 Debian Importer Fixing VCID-1ryc-yvxd-93e2 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T07:01:29.025751+00:00 Debian Importer Fixing VCID-z19z-zu3b-5khe https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T06:56:27.816904+00:00 Debian Importer Fixing VCID-xud3-4s7g-rkcv https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T06:42:58.622792+00:00 Debian Importer Fixing VCID-yuex-f2ae-ffft https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T06:38:37.845494+00:00 Debian Importer Fixing VCID-6fkp-5fzu-fydp https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T06:33:20.062755+00:00 Debian Importer Fixing VCID-7458-uqdr-5fg7 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T18:21:56.394734+00:00 Debian Importer Fixing VCID-zwz9-pt55-t3c6 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T18:13:07.806231+00:00 Debian Importer Fixing VCID-1mm2-4b1k-afat https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T18:08:42.436036+00:00 Debian Importer Fixing VCID-b8c2-qrxm-sybt https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T18:07:01.314130+00:00 Debian Importer Fixing VCID-khsw-jwtm-8faq https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:56:03.804187+00:00 Debian Importer Fixing VCID-qd4e-g5zv-1ucf https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:55:32.002992+00:00 Debian Importer Fixing VCID-utn7-mdgr-z7em https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:55:10.632797+00:00 Debian Importer Fixing VCID-b911-qnc2-x3aj https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:54:23.169250+00:00 Debian Importer Fixing VCID-vc9x-hjtc-q3f1 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-03T07:54:34.547867+00:00 Debian Importer Fixing VCID-1mm2-4b1k-afat https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.500894+00:00 Debian Importer Fixing VCID-2vyc-yhw7-muea https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.453831+00:00 Debian Importer Fixing VCID-rq11-qm9e-7ubk https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.406388+00:00 Debian Importer Fixing VCID-bqyj-qnak-eydy https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.358133+00:00 Debian Importer Fixing VCID-yuex-f2ae-ffft https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.310405+00:00 Debian Importer Fixing VCID-7458-uqdr-5fg7 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.263462+00:00 Debian Importer Fixing VCID-qd4e-g5zv-1ucf https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.216549+00:00 Debian Importer Fixing VCID-utn7-mdgr-z7em https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.169178+00:00 Debian Importer Fixing VCID-xud3-4s7g-rkcv https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.121879+00:00 Debian Importer Fixing VCID-vc9x-hjtc-q3f1 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.074793+00:00 Debian Importer Fixing VCID-khsw-jwtm-8faq https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:34.027769+00:00 Debian Importer Fixing VCID-k4e4-363e-xyff https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.980077+00:00 Debian Importer Fixing VCID-1ryc-yvxd-93e2 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.931849+00:00 Debian Importer Fixing VCID-zr32-w34c-3ygt https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.834897+00:00 Debian Importer Fixing VCID-z19z-zu3b-5khe https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.745348+00:00 Debian Importer Fixing VCID-pbhu-5gkn-qkb8 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.655369+00:00 Debian Importer Fixing VCID-b911-qnc2-x3aj https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.606288+00:00 Debian Importer Fixing VCID-b8c2-qrxm-sybt https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.557531+00:00 Debian Importer Fixing VCID-jy6e-d578-nkcg https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.508000+00:00 Debian Importer Fixing VCID-n4kc-y37w-qkdk https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.417925+00:00 Debian Importer Fixing VCID-c51s-yenc-4yab https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.370137+00:00 Debian Importer Fixing VCID-ddem-1dt1-uff7 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.321463+00:00 Debian Importer Fixing VCID-zwz9-pt55-t3c6 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.227029+00:00 Debian Importer Fixing VCID-6fkp-5fzu-fydp https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-03T07:54:33.093762+00:00 Debian Importer Fixing VCID-2k99-39yt-gkbe https://security-tracker.debian.org/tracker/data/json 38.1.0