Description
rpcapd/daemon.c in libpcap before 1.9.1 mishandles certain length values because of reuse of a variable. This may open up an attack vector involving extra data at the end of a request.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libpcap | 1.9.1-1 | — |
| Debian 13 | libpcap | 1.9.1-1 | — |
| Debian 12 | libpcap | 1.9.1-1 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libpcap | 1.9.1-r0 | — |
| Alpine v3.23 | libpcap | 1.9.1-r0 | — |
| Alpine v3.22 | libpcap | 1.9.1-r0 | — |
| Alpine v3.21 | libpcap | 1.9.1-r0 | — |
| Alpine v3.20 | libpcap | 1.9.1-r0 | — |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | libpcap | 1.9.1-r0 | — |
| Alpine v3.18 | libpcap | 1.9.1-r0 | — |
| Alpine v3.17 | libpcap | 1.9.1-r0 | — |
| Alpine v3.16 | libpcap | 1.9.1-r0 | — |
| Alpine v3.15 | libpcap | 1.9.1-r0 | — |
| Alpine v3.14 | libpcap | 1.9.1-r0 | — |
| Alpine v3.13 | libpcap | 1.9.1-r0 | — |
| Alpine v3.12 | libpcap | 1.9.1-r0 | — |
| Alpine v3.10 | libpcap | 1.1.1-r0 | — |
References
- https://www.tcpdump.org/public-cve-list.txt
- https://github.com/the-tcpdump-group/libpcap/blob/libpcap-1.9/CHANGES
- https://github.com/the-tcpdump-group/libpcap/commit/617b12c0339db4891d117b661982126c495439ea
- FEDORA-2019-eaa681d33e vendor-advisory
- FEDORA-2019-4fe461079f vendor-advisory
- FEDORA-2019-b92ce3144a vendor-advisory
- https://support.apple.com/kb/HT210788
- https://support.apple.com/kb/HT210790
- https://support.apple.com/kb/HT210785
- https://support.apple.com/kb/HT210789
- 20191211 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra mailing-list
- 20191213 APPLE-SA-2019-12-10-3 macOS Catalina 10.15.2, Security Update 2019-002 Mojave, Security Update 2019-007 High Sierra mailing-list
- https://www.oracle.com/security-alerts/cpuapr2020.html