An update for firefox is now available for openEuler-22.03-LTS-SP4 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2025-1489 Final 1.0 1.0 2025-05-09 Initial 2025-05-09 2025-05-09 openEuler SA Tool V1.0 2025-05-09 firefox security update An update for firefox is now available for openEuler-22.03-LTS-SP4 Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. Security Fix(es): Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10.(CVE-2025-2817) A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10.(CVE-2025-4083) Due to insufficient escaping of the special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.* This vulnerability affects Firefox ESR < 128.10, Firefox ESR < 115.23, and Thunderbird < 128.10.(CVE-2025-4084) A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10.(CVE-2025-4087) Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10.(CVE-2025-4091) Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.10 and Thunderbird < 128.10.(CVE-2025-4093) An update for firefox is now available for master/openEuler-20.03-LTS-SP4/openEuler-22.03-LTS-SP3/openEuler-22.03-LTS-SP4/openEuler-24.03-LTS/openEuler-24.03-LTS-Next/openEuler-24.03-LTS-SP1/openEuler-24.03-LTS-SP2. openEuler Security has rated this update as having a security impact of high. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. High firefox https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-2817 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-4083 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-4084 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-4087 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-4091 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-4093 https://nvd.nist.gov/vuln/detail/CVE-2025-2817 https://nvd.nist.gov/vuln/detail/CVE-2025-4083 https://nvd.nist.gov/vuln/detail/CVE-2025-4084 https://nvd.nist.gov/vuln/detail/CVE-2025-4087 https://nvd.nist.gov/vuln/detail/CVE-2025-4091 https://nvd.nist.gov/vuln/detail/CVE-2025-4093 openEuler-22.03-LTS-SP4 firefox-128.10.0-1.oe2203sp4.src.rpm firefox-128.10.0-1.oe2203sp4.x86_64.rpm firefox-debuginfo-128.10.0-1.oe2203sp4.x86_64.rpm firefox-debugsource-128.10.0-1.oe2203sp4.x86_64.rpm firefox-128.10.0-1.oe2203sp4.aarch64.rpm firefox-debuginfo-128.10.0-1.oe2203sp4.aarch64.rpm firefox-debugsource-128.10.0-1.oe2203sp4.aarch64.rpm Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations on paths controlled by a non-privileged user and enabling privilege escalation. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10. 2025-05-09 CVE-2025-2817 openEuler-22.03-LTS-SP4 High 8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 A process isolation vulnerability in Thunderbird stemmed from improper handling of javascript: URIs, which could allow content to execute in the top-level document's process instead of the intended frame, potentially enabling a sandbox escape. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Firefox ESR < 115.23, Thunderbird < 138, and Thunderbird < 128.10. 2025-05-09 CVE-2025-4083 openEuler-22.03-LTS-SP4 High 8.8 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 Due to insufficient escaping of the special characters in the "copy as cURL" feature, an attacker could trick a user into using this command, potentially leading to local code execution on the user's system. *This bug only affects Firefox for Windows. Other versions of Firefox are unaffected.* This vulnerability affects Firefox ESR < 128.10, Firefox ESR < 115.23, and Thunderbird < 128.10. 2025-05-09 CVE-2025-4084 openEuler-22.03-LTS-SP4 High 7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 A vulnerability was identified in Thunderbird where XPath parsing could trigger undefined behavior due to missing null checks during attribute access. This could lead to out-of-bounds read access and potentially, memory corruption. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10. 2025-05-09 CVE-2025-4087 openEuler-22.03-LTS-SP4 Medium 6.5 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 Memory safety bugs present in Firefox 137, Thunderbird 137, Firefox ESR 128.9, and Thunderbird 128.9. 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. This vulnerability affects Firefox < 138, Firefox ESR < 128.10, Thunderbird < 138, and Thunderbird < 128.10. 2025-05-09 CVE-2025-4091 openEuler-22.03-LTS-SP4 Medium 6.5 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489 Memory safety bug present in Firefox ESR 128.9, and Thunderbird 128.9. This bug showed evidence of memory corruption and we presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 128.10 and Thunderbird < 128.10. 2025-05-09 CVE-2025-4093 openEuler-22.03-LTS-SP4 Medium 6.5 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N firefox security update 2025-05-09 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1489