SB2019090648 - Use-after-free in firefox-esr (Alpine package)
Published: September 6, 2019
Security Bulletin ID
SB2019090648
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2019-11752)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when extracting a key value in IndexedDB. A remote attacker can create specially crafted webpage, trick the victim into visiting it, trigger a user-after-free error by deleting the IndexedDB key value and subsequently make the application try to extract it during conversion.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=df118d5706ba2d60b54d1285b0c2544abd2dc984
- https://git.alpinelinux.org/aports/commit/?id=ebf9184f5bbef1f9faab710ffb48bb36b5bae10e
- https://git.alpinelinux.org/aports/commit/?id=e5cf7735a9421cc3029ffa0ffda33135ab64ac6a
- https://git.alpinelinux.org/aports/commit/?id=6f6dc3727e020934d6a5a3d10fe2b591bd4c305a
- https://git.alpinelinux.org/aports/commit/?id=0022d15ae85827001bd50d87a374fd81eb56167b