Buffer overflow in Mozilla Firefox
CVE-2019-11745
When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption and a potentially exploitable crash. This v…
Vulnerability class: Buffer Overflow
EPSS: 0.030 (85.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Mozilla Firefox — versions before 71
- Mozilla Firefox Esr — versions before 68.3
- Mozilla Firefox_esr
- Mozilla Thunderbird — versions before 68.3
- Siemens Ruggedcom_rox_mx5000
- Siemens Ruggedcom_rox_mx5000_firmware
- Siemens Ruggedcom_rox_rx1400
- Siemens Ruggedcom_rox_rx1400_firmware
- Siemens Ruggedcom_rox_rx1500
- Siemens Ruggedcom_rox_rx1500_firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Vendor Advisory)
- security@mozilla.org (x_refsource_CONFIRM, Patch, Issue Tracking, Vendor Advisory)
- security@mozilla.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Mailing List, Third Party Advisory, Issue Tracking, x_refsource_SUSE)
- security@mozilla.org (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- security@mozilla.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- security@mozilla.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@mozilla.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-11745?
- CVE-2019-11745 is a high-severity vulnerability in Mozilla Firefox, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-01-08.
- How severe is CVE-2019-11745?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2019-11745 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.