CVE catalog
CVE-2021-31323
rlottie: CVE-2021-31323
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.27% · Oct 25, 2026
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the LottieParserImpl::parseDashProperty function of their custom fork of the rlottie library. A remote attacker might be able to access heap memory out-of-bounds on a victim device via a malicious animated sticker.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | rlottie | sid | 0.1+dfsg-5 | not affected |
| Debian | rlottie | forky | 0.1+dfsg-5 | not affected |
| Debian | rlottie | trixie | 0.1+dfsg-4.2+deb13u2 | not affected |
| Debian | rlottie | bookworm | 0.1+dfsg-4+deb12u2 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | rlottie | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | rlottie | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | rlottie | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | rlottie | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [librlottie0-1]Not affected
Source package: [rlottie]
Details (2)
0.1+dfsg-4+deb12u2· amd64 · bookwormNot affected
dsa · rlottie · debian · bookworm
0.1+dfsg-4+deb12u2· arm64 · bookwormNot affected
dsa · rlottie · debian · bookworm
- [librlottie-dev]Not affected
Source package: [rlottie]
Details (2)
0.1+dfsg-4+deb12u2· amd64 · bookwormNot affected
dsa · rlottie · debian · bookworm
0.1+dfsg-4+deb12u2· arm64 · bookwormNot affected
dsa · rlottie · debian · bookworm
Observed: