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Debian · Security advisory · September 29, 2023
Debian · Security advisory · September 29, 2023DSA-5509-1: firefox-esr security update
DSA-5509-1, released September 29, 2023, fixes 1 CVE in firefox-esr (version 115.3.1esr-1~deb11u1). One of them is being exploited (CVE-2023-5217); 1 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now1 on CISA KEV1 publicly disclosedUnsupported product
CVEs closed
1
None rated Critical
Exploited
1
CVE-2023-5217
Highest CVSS
8.8
Base score, 0 to 10
Highest EPSS
0.4901
98th percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| firefox-esr | Debian 11.6 (bullseye) | 115.3.1esr-1~deb11u1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Patch now | CVE-2023-5217 | Chromium: CVE-2023-5217 Heap buffer overflow in vp8 encoding in libvpx | 8.8 | 0.4901 | KEVDisclosedExploited |
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